Understanding Modal Verbs: Can and Could

This video tutorial by Rajna covers the use of modal verbs 'can' and 'could'. It explains how 'can' is used for expressing present abilities and possibilities, as well as making informal requests and permissions. The tutorial also discusses 'could' for making polite requests in the present and describing past abilities and possibilities. The video provides examples to illustrate these uses and clarifies common confusions about the tenses in which 'could' can be used.

What is the main focus of the lesson introduced by Rajna?

• The use of adjectives.

• The use of future tense verbs.

• The use of past tense verbs.

• The use of modal verbs 'can' and 'could'.

Which form do verbs take after 'can'?

• Past participle form

• Present form

• Gerund form

• Future form

What does 'can' express when used in a sentence?

• A past event

• A future possibility

• A present ability or possibility

• A hypothetical situation

In the sentence 'He can swim', what does 'can' indicate?

• A past ability

• A present ability

• A future ability

• A hypothetical ability

How is 'can' used in informal settings?

• To make formal requests

• To express past abilities

• To express future possibilities

• To make informal requests or permissions

Which of the following is an example of using 'can' informally?

• Can you please complete the report?

• Can I borrow your book?

• Can you explain the theory?

• Can you attend the meeting tomorrow?

What is the difference between 'can' and 'could' in terms of formality?

• Neither is formal.

• Both are equally formal.

• 'Could' is more formal than 'can'.

• 'Can' is more formal than 'could'.

When is 'could' used in the present tense?

• To express a future possibility

• To make a polite request

• To express a past ability

• To describe a hypothetical situation

Which sentence uses 'could' to make a polite request?

• Could I have some coffee?

• Could you swim when you were young?

• Could they finish the project last week?

• Could it rain tomorrow?

How is 'could' used to express past abilities?

• To describe future abilities

• To describe present abilities

• To describe abilities that existed in the past

• To describe hypothetical abilities