Understanding the Difference Between Can and Could

This video tutorial explores the differences between 'can' and 'could'. 'Can' is used to express present ability or informal permission, while 'could' is the past tense of 'can' and is used for polite requests or conditional situations. The tutorial provides examples and comparisons to clarify their usage, concluding with a recap and a quiz to reinforce learning.

What is the primary difference in meaning between 'can' and 'could'?

In what context is 'can' considered less polite than 'could'?

Provide an example sentence using 'could' to express a past ability.

How does 'could' function as a conditional verb? Give an example.

Explain how 'can' and 'could' can be used in the same sentence.