We use Do if the subject of the sentence is one of the following .

I/You/We/They

We use Does if the subject of the sentence is one of the following .

He/She/It/Name

Example of Do

1 I don’t eat Non-Veg.

2 We don’t live in bunglows.

3 Do you play cricket?

4 What do they do on Sundays?

5 You don’t listen to me.

Examples of Does

1 It doesn’t rain much here.

2 He doesn’t ride a bike.

3 She doesn’t come on time.

4 Does he speak the truth?

5 Where does he live?