Mastering Modal and Future Perfect

What is the structure of a modal perfect verb?

• modal + have + infinitive

• modal + be + present participle

• modal + do + base form

• modal + have + past participle

Provide an example of a sentence using 'must have' in modal perfect.

• I must have left my keys at home.

• He must have gone to the store.

• She must have missed the bus.

• They must have finished their homework.

How do you form the future perfect tense?

• will be + past participle

• will have + past participle

• will have + present participle

• has + past participle

Create a sentence using the future perfect tense.

• I will complete my degree last year.

• I will be completing my degree next year.

• Next year, I have completed my degree.

• By next year, I will have completed my degree.

Identify the modal verb in the following sentence: 'She should have completed her assignment.'

• should

• would

• might

• could

Transform the following sentence into future perfect: 'They finish the project by next week.'

• They will finish the project by next week.

• They have finished the project by next week.

• They will have finished the project by next week.

• They will be finishing the project by next week.

What is the difference between 'might have' and 'must have' in modal perfect?

• 'Might have' indicates a past action; 'must have' indicates a future action.

• 'Might have' is a command; 'must have' is a suggestion.

• 'Might have' suggests possibility; 'must have' suggests certainty.

• 'Might have' is used for certainty; 'must have' is used for doubt.

Write a complex sentence using 'could have' and a conditional clause.

• If I had taken the test, I could have failed.

• If I had known the answer, I could have answered it correctly.

• If I study harder, I could pass the exam.

• If I had studied harder, I could have passed the exam.

Explain the use of modals in expressing certainty and possibility.

• 'Will' is used to express uncertainty, while 'can' indicates possibility.

• Modals like 'must' express certainty, while 'might' and 'may' express possibility.

• Modals like 'should' express possibility, while 'could' expresses certainty.

• 'Shall' is used for expressing doubt, while 'would' indicates certainty.

Construct a sentence using 'would have' in a hypothetical context.

• If I knew about the meeting, I would attend it.

• I would have gone to the meeting if I know about it.

• If I had known about the meeting, I would attend it.

• If I had known about the meeting, I would have attended it.