Understanding 'Did' vs 'Have' Usage

In this lesson, Paul explains the difference between 'didn't' and 'haven't'. He covers their grammatical structures, usage in past simple and present perfect tenses, and provides practical examples. The lesson also includes guidance on responding to questions using these forms and concludes with a homework assignment to reinforce learning.

What is the main focus of this lesson?

• Differences between 'didn't' and 'haven't'

• Advanced vocabulary

• Common English idioms

• English pronunciation

What is the contracted form of 'did not'?

• Can't

• Haven't

• Didn't

• Won't

How do you construct a sentence using 'didn't'?

• Subject + will not + base verb

• Subject + have not + past participle

• Subject + is not + base verb

• Subject + did not + base verb

When should you use 'didn't'?

• For ongoing actions

• For future actions

• For completed actions in the past

• For actions that are still possible

What does 'haven't' help to connect?

• The future to the present

• The past to the present

• Two future actions

• Two past actions

What question should you ask to decide between 'didn't' and 'haven't'?

• Is it interesting?

• Is it still possible?

• Is it urgent?

• Is it necessary?

Why would you use 'didn't' in the Mona Lisa example?

• Because you have seen it

• Because you plan to see it

• Because you are no longer in Paris

• Because you are still in Paris

Why would you use 'haven't' if you are still in Paris?

• Because you cannot see it

• Because you have already seen it

• Because you don't want to see it

• Because you still have the chance to see it

What additional meaning does 'haven't' convey?

• A completed action

• A past action

• An intention to do something

• A refusal to do something

How should you respond to a question in the past simple?

• Using the conditional tense

• Using the future tense

• Using the past simple

• Using the present perfect