Understanding Prohibition in English Modals

This video tutorial covers the use of modals for expressing prohibition in English. It explains the difference between 'can't' and 'mustn't', highlighting that 'can't' is used for rules and 'mustn't' for speaker-imposed prohibitions. The video also discusses other verbs like 'let', 'allow', and 'don't allow' that express prohibition. It further distinguishes between 'mustn't' and 'don't have to', emphasizing their different meanings. The tutorial concludes with how to express prohibition in the past using 'couldn't' and 'didn't allow'. Practice exercises are provided to reinforce learning.

Which modals are commonly used to express prohibition?

• Can and Should

• Can't and Mustn't

• Will and Would

• May and Might

What does 'can't' indicate in terms of rules?

• Personal preference

• Formal rules

• Suggestions

• Past actions

When is 'mustn't' typically used?

• To give permission

• To show a speaker's prohibition

• To express a suggestion

• To indicate a past action

Which modal is used to express a prohibition that comes from the speaker?

• Don't have to

• Mustn't

• Can't

• Shouldn't

Which structure is correct for using 'let' to express prohibition?

• Let + pronoun + verb

• Let + infinitive + pronoun

• Let + pronoun + bare infinitive

• Let + verb + pronoun

How is 'allow' different from 'let' in terms of structure?

• Allow is followed by a pronoun

• Allow is followed by a verb

• Allow is followed by 'to'

• Allow is followed by an adjective

What is the structure for expressing prohibition using 'don't allow'?

• Don't allow + to + verb + pronoun

• Don't allow + verb + to + pronoun

• Don't allow + pronoun + to + verb

• Don't allow + verb + pronoun

What is the correct structure for using 'not allowed to'?

• Not allowed + verb

• Not allowed + to + verb

• Not allowed + pronoun + verb

• Not allowed + verb + to

What is the main difference between 'mustn't' and 'don't have to'?

• 'Mustn't' is a necessity not to do something

• 'Don't have to' is a necessity to do something

• 'Don't have to' is for future actions

• 'Mustn't' is for past actions

Which modal indicates that something is not necessary but optional?

• Mustn't

• Can't

• Shouldn't

• Don't have to