What are the differences among Do/Does/Did/Done in English? Let's see the following guidelines.

- Do forms

Do + I/You/We/They + Verb ...?

I/You/We/They + do

- Does forms

Does + He/She/It + Verb ...?

He/She/It + Does

- Did forms

Did + I/You/We/They/He/She/It + Verb ...?

I/You/We/They/He/She/It + Did

- Done forms

Have + I/You/We/They + Done ...?

Has + He/She/It + Done ...?

I/You/We/They + Have + Done

He/She/It + Has + Done

 

Now you practice with a "Do/Does/Did/Done" test.