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.

Which word is used to express present ability?

• Could

• Can

• Might

• Should

In which situation is 'can' typically used?

• To make a formal request

• To indicate past ability

• To express a wish

• To ask for informal permission

How is 'could' different from 'can' in terms of politeness?

• 'Could' is less polite than 'can'.

• 'Could' is more polite than 'can'.

• Neither is used for politeness.

• Both are equally polite.

What does 'could' express when used in a conditional sentence?

• A definite action

• A past action

• A possible action depending on another condition

• An impossible action

Which of the following is an example of 'could' used in a subjunctive mood?

• Could you help me with this?

• I wish I could fly.

• I could swim when I was younger.

• I could go to the party if I finish my work.