We use the Present Perfect Simple to talk about things that we have done in our life, in other words to talk about our life experience.
(+) Positive: Subject + have/has + past participle
Example: I have been to China.
(-) Negative: Subject + have/has + not + past participle
Example: I have not eaten Sushi.
(?) Question: Have/Has + subject + past participle ?
Example: Have you tried ice skating?