What do you like? I do not like anything. | I like to do nothing. What does she like? She does not like anything. | She likes to do nothing. [never 'to does'] ----- I / we / you / they / those / these / which ones + do he / she / it / this / that / which one + does

I you we they-do/he she it-does

'Does' is used instead of 'do' for 3rd person singular, as shown in the examples others have shown

DO is used to I, you, we and they! DOES is used to he, she and it! In question sentences or negative sentences or interrogative sentences. It may be used to infensify the affirmative sentences! Examples: Do I play with you like this? He does study hard! Do they talk to their sisters? She doesn't like her brother. Don't you go to school now? We do like to eat meat. Or, we really like to eat meat. I hope to help you!