All over
the world, different countries have different rules and regulations. You can
drink a lot of alcohol in Ireland, but you can’t drink any alcohol in most
Muslim countries. You should drive on the left of the road in some countries,
but you should drive on the right in most countries. Women may wear shorts and
a t-shirt in some hot countries, but they must completely cover their bodies in
other hot countries.
English-speaking
countries have different rules too. They also have different attitudes: some
countries are strict (making sure you follow all of their rules) but other
countries are relaxed.
However, all English speakers use the same language to describe laws and rules.
It is extremely important to understand this language: if you misunderstand a rule you could lose money or miss an event. (For example, if a concert ticket says “You mustn’t arrive after 8.30pm”, what happens if you arrive at 9 o’clock?) Even worse, if you misunderstand a law you could go to jail! (For example, can you understand the sentence, “Consumption of alcohol is prohibited”?)
However, all English speakers use the same language to describe laws and rules.
It is extremely important to understand this language: if you misunderstand a rule you could lose money or miss an event. (For example, if a concert ticket says “You mustn’t arrive after 8.30pm”, what happens if you arrive at 9 o’clock?) Even worse, if you misunderstand a law you could go to jail! (For example, can you understand the sentence, “Consumption of alcohol is prohibited”?)
This blog
could save your life! We’ll begin at an ELEMENTARY level, and move along to
UPPER-INTERMEDIATE and ADVANCED language.
MODAL VERBS
In the first paragraph of this blog we used many modal verbs like can, should, may and must. To talk about rules and laws we also use the modal verbs mustn’t, have to and don’t have to.
Our Facebook page recently quizzed English42 fans on how to use modal verbs...
In the first paragraph of this blog we used many modal verbs like can, should, may and must. To talk about rules and laws we also use the modal verbs mustn’t, have to and don’t have to.
Our Facebook page recently quizzed English42 fans on how to use modal verbs...
[ELEMENTARY] THINGS TO REMEMBER ABOUT MODAL VERBS
1. Modal verbs don’t change when the person changes. (I can speak English; You can speak English; He/She can speak English...)
1. Modal verbs don’t change when the person changes. (I can speak English; You can speak English; He/She can speak English...)
2. A bare-infinitive verb always comes after a modal verb. (A
bare-infinitive verb is a verb, without the word “to”, which is unchanged: go [not
“to go”, “going” or “goes”], eat [not
“to eat”, “eating” or “eats”]. So these sentences are all wrong:
a) He can to go to Italy now.
(CORRECT: He can go to Italy now.)
b)
You should staying at home tonight. (CORRECT: You should stay at home tonight.)
c)
She must waits at the station. (CORRECT: She must wait at the train station.)
3. Each modal verb has a unique
meaning. Let’s look at these now...
[ELEMENTARY] MODAL VERBS FOR RULES & LAWS
In
English, we use many different modal verbs to describe laws and rules – just
look at the top of this page! Some modal verbs have other meanings too:
CAN:
“You can leave
school at 4 o’clock.” This sentence describes a school rule. If we change the
sentence to a negative, it also describes a rule: “You can’t leave the school
before 4 o’clock.” Also, the two sentences have more or less the same meaning. But the
sentence “He can sing” doesn’t describe a rule (it describes an ability)
SHOULD: “In Brazil, you should drive on
the right of the road.” is another way to describe a law. So is the sentence,
“In Brazil, you shouldn’t drive on the left of the road.” Again, the two
sentences have more or less the same meaning. But the
meaning is different if you say the sentence, “You should get a new job.” This
is advice.
MAY NOT: “Tourists may not stay in the USA
for more than 90 days.” This sentence expresses a rule. But the opposite, “Tourists may stay in the USA for under 90 days” doesn’t
exactly express a rule: here, we are talking about something which you can do. The
meaning changes with a sentence like, “Susan may come to the office tomorrow.”
This describes a possibility.
[INTERMEDIATE] FORMAL MODAL VERBS FOR RULES & LAWS
Other
modal verbs are always used for rules and laws. You will see this language in
formal texts about rules/laws.
MUST & HAVE TO / HAS TO: These
are both positive ways to describe a rule or law. [see NOTE1]
Basically, the message is very strong: “do this thing. If you don’t do this thing, you will be in trouble.” You often see these verbs on signs, rule-books and laws in English-speaking countries.
HAVE TO isn’t actually a modal verb. It’s different because you need to change it depending on the person. But it follows the other rules of modal verbs.
Basically, the message is very strong: “do this thing. If you don’t do this thing, you will be in trouble.” You often see these verbs on signs, rule-books and laws in English-speaking countries.
HAVE TO isn’t actually a modal verb. It’s different because you need to change it depending on the person. But it follows the other rules of modal verbs.
Here are
some examples:
1. You must arrive at the airport one hour before you fly.
2. You have to drive slowly near schools.
3. He has to apply for a visa before he can study in the UK.
4. We must leave the hotel room before 11am.
2. You have to drive slowly near schools.
3. He has to apply for a visa before he can study in the UK.
4. We must leave the hotel room before 11am.
[NOTE1: some
English speakers believe that “must” is used for rules and “have to” is used
for laws. This isn’t always true. But often you’ll see a sign in a school (for
example) which says, “You must pay your fee before you join the course”, and
you’ll often see a law which says “Drivers have to stay on the right of the
road.”]
MUST NOT (MUSTN’T): This is the negative way to describe
a rule or law – it is the opposite of both
MUST and HAVE TO.
Basically, the message is very strong: “don’t do this thing. If you do this thing, you will be in trouble.” You often see this modal verb on signs, rule-books and laws in English-speaking countries.
Here are some examples:
Basically, the message is very strong: “don’t do this thing. If you do this thing, you will be in trouble.” You often see this modal verb on signs, rule-books and laws in English-speaking countries.
Here are some examples:
1. You must not smoke on an airplane.
2. You must not murder anyone.
3. You must not drink alcohol and drive a car.4
2. You must not murder anyone.
3. You must not drink alcohol and drive a car.4
DON’T/DOESN’T HAVE
TO: This is
the negative
way to describe something you can
do – but it isn’t a rule. It is different in meaning to the other 3 modal
verbs here. Also, you don’t often see this modal verb on signs,
rule-books and laws in English-speaking countries. You will hear them in
conversation.
Some
examples are:
1. [In a school] You don’t have to stay after 4pm. (but you
can stay if you want to, and you must
stay before 4pm)
2. [In an airport] You don’t have to arrive 3 hours before your flight. (but you can if you want to, and you must arrive 1 hour before your flight)
3. [In an office] He doesn’t have to work after 5pm. (but he can if he wants to, and he must work before 5pm)
2. [In an airport] You don’t have to arrive 3 hours before your flight. (but you can if you want to, and you must arrive 1 hour before your flight)
3. [In an office] He doesn’t have to work after 5pm. (but he can if he wants to, and he must work before 5pm)
This
table may help you to understand these modal verbs:
|
DO
THIS
|
DON'T
DO THIS
|
YOUR
CHOICE
|
|
must
|
mustn’t
|
don’t have to
|
|
have to
|
Look
again at the Facebook quiz which we showed earlier. In the comments you will
find the answers. Can you understand each answer? Do you see why some sentences
are correct and others are completely incorrect?
ADJECTIVES
& PASSIVES
[UPPER-INTERMEDIATE+] ADJECTIVES FOR RULES & LAWS
In a second
Facebook quiz, we asked you to choose the best adjective to describe rules. Here’s the quiz:
We can
express rules and laws without modal verbs, by using these three words:
compulsory
prohibited
allowed
It’s
important to understand the unique meaning of each adjective: you see these in
government documents, in signs and in rule-books more often than you see the
modal verbs.
allowed is related to
the modal verbs can or may. It means, basically, that you can
or may do something – but you don’t have
to.
Let’s look at an annoying sign which all of us have probably seen in airports.
Let’s look at an annoying sign which all of us have probably seen in airports.
HOW TO USE allowed: According
to this sign, you can bring liquids
which are under 100ml. “Allowed” can be used in 2 ways: as an adjective, and as a passive part-participle verb...
1. (as an adjective) Liquids which are
under 100ml are allowed.
OR
2. (as a passive)You are allowed to bring liquids which are under 100ml.
OR
2. (as a passive)You are allowed to bring liquids which are under 100ml.
Let’s
look at the structure of these sentences, and some other examples.
|
1. (as an adjective)
|
|||
|
[noun]
|
[“to be”]
|
[adjective]
|
[optional information]
|
|
Liquids
which are under 100ml
|
are
|
allowed.
|
|
|
Smoking
|
is
|
allowed
|
in
this area.
|
|
Driving
a car
|
is
|
allowed
|
if
you have a bus driver’s license.
|
|
2. (as a passive)
|
||||
|
[subject]
|
passive
|
[infinitive verb]
|
[optional information]
|
|
|
You
|
are
|
allowed
|
to
bring
|
liquids
which are under 100ml.
|
|
Students
|
are
|
allowed
|
to
leave
|
after
4pm.
|
|
New
EU countries
|
will
be
|
allowed
|
to
trade
|
with
Germany.
|
REMEMBER!! Using “It is allowed” is not allowed.
We don’t use the structure “It is allowed to smoke.” We will use this structure with the following two words, but it’s a big mistake to use it with “allow”.
We don’t use the structure “It is allowed to smoke.” We will use this structure with the following two words, but it’s a big mistake to use it with “allow”.
A synonym for “allowed” – a word which
has the same meaning – is the word permitted.
It can be used in a sentence in exactly the same 2 ways. (e.g. “Smoking is
permitted in this area”, “Students are permitted to leave.”)
compulsory is related to the modal verbs can or may. It means, basically, “do this. If you don’t do this, you’ll
be in trouble (or you can’t continue).”
After
you have taken care of your liquids at the airport, you go through security.
After
you have taken care of your liquids at the airport, you go through security.
What do you do next? You go through a metal
detector. Before you go through, however, you must take off your shoes and remove your belt. Then you must walk through the metal detector.
HOW TO USE compulsory: So,
how would English speakers describe this? There are 2 ways:
1. (as an adjective which
describes the action/item) Your
boarding pass is compulsory.
OR
2. (as an adjective which describes a verb) It is compulsory to remove your shoes.
OR
2. (as an adjective which describes a verb) It is compulsory to remove your shoes.
Study the
structure of these sentences, and some other examples.
|
1. (as an adjective which describes the action/item)
|
|||
|
[noun]
|
[“to be”]
|
[adjective]
|
[optional information]
|
|
Your
boarding pass
|
is
|
compulsory
|
if
you want to go to the Departure gate.
|
|
Paying
taxes
|
is
|
compulsory.
|
|
|
Driving
on the right
|
is
|
compulsory
|
in
most countries.
|
|
2. (as an adjective which describes a verb)
|
||
|
“It is compulsory”
|
[infinitive verb]
|
[optional/additional information]
|
|
It
is compulsory
|
to
remove
|
your
shoes
|
|
It
is compulsory
|
to
take
|
off
your belt.
|
|
It
is compulsory
|
to
drive
|
on
the left in the UK and Ireland.
|
Some synonyms for “compulsory” are necessary and essential. These are used in a sentence in the same 2 ways as “compulsory”. (e.g. “Your boarding pass is necessary.” “It is necessary to take off your belt.”)
Another synonym for “compulsory” is required. This can only be used in a sentence as an adjective which describes the action/item). (e.g. “Driving on the right is required.”)
prohibited is related to the modal verbs mustn’t. It means, basically, “don’t do
this. If you do this, you’ll be in trouble (or you can’t continue).”
When you get on the plane, there are certain items which you must not have in your bag. Usually, you see a sign like this at the check-in desk:
When you get on the plane, there are certain items which you must not have in your bag. Usually, you see a sign like this at the check-in desk:
HOW TO USE prohibited: The sign may also
have text which uses the word “prohibited”:
1. (as an adjective which
describes the action/item) Guns are prohibited.
|
1. (as an adjective which describes the action/item)
|
|||
|
[noun]
|
[“to be”]
|
[adjective]
|
[optional information]
|
|
Guns
|
are
|
prohibited
|
on
the airplane.
|
|
Smoking
|
is
|
prohibited
|
in
most hospitals.
|
|
Driving
on the right
|
is
|
prohibited
|
In
the UK and Ireland.
|
It’s not completely wrong to say “It is prohibited to smoke in the hospital”. An English-speaker will understand this – but it doesn’t sound very natural.
Some synonyms for “prohibited” are not allowed, not permitted, barred, banned and
forbidden. These are all used in a
sentence in the same way as “prohibited”. (e.g. “Smoking is not allowed in most
hospitals.” “Guns are forbidden on the airplane.”)
Forbidden can also be used in a sentence as an adjective which describes a verb. (e.g. “It is forbidden to smoke.”)
Forbidden can also be used in a sentence as an adjective which describes a verb. (e.g. “It is forbidden to smoke.”)
It’s easy
to practice the language we’ve learned here. Simply look at any roadsigns in
your country and try to say them in English, using a modal verb or an
adjective. You could translate the rules of your school or workplace, or you
could study the rules and laws of an English-speaking country.
In the week which begins 27 January, we’ll post a final quiz on our Facebook page, so keep looking and keep practicing! Good luck!
In the week which begins 27 January, we’ll post a final quiz on our Facebook page, so keep looking and keep practicing! Good luck!

