The video tutorial explains the use of the modal verb 'have to' to express strong obligations imposed by rules or laws. It highlights differences in usage between American and British English, where 'have to' often replaces 'must'. The tutorial covers how 'have to' is used in different tenses and sentence structures, including positive, negative, and interrogative forms. It concludes with a recap and a question to apply the learned concepts.

What is the primary use of the modal verb 'have to'?

• To express a wish

• To express a possibility

• To express a strong obligation

• To express a suggestion

In which English variant is 'must' being replaced by 'have to'?

• Canadian English

• British English

• Australian English

• American English

Which auxiliary verb is used with 'have to' in the future tense?

• Has

• Did

• Do

• Will

How is 'have to' used in a negative sentence structure?

• Subject + auxiliary + not + have to + verb

• Subject + not + have to + verb

• Subject + have to + verb + not

• Subject + have to + not + verb

What is the correct order for forming an interrogative sentence with 'have to'?

• Subject + WH word + have to + verb

• WH word + auxiliary + subject + have to + verb

• Auxiliary + WH word + subject + have to + verb

• WH word + subject + have to + verb

What is the main difference between 'have to' and 'must' in terms of obligation?

• 'Have to' is used for impersonal obligations

• 'Have to' is more personal

• 'Must' is used for future obligations

• 'Must' is more commonly used in American English

In British English, what phrase is equivalent to 'have to'?

• Have got to

• Should

• Need to

• Ought to