The conversation between human and AI assistant.
[|Human|] Use Present Perfect instead of Present Simple when it’s necessary.
[|AI|] Correct! The sentence uses the Present Perfect tense: "I have moved to a new city" which means the action (moving to a new city) occurred at an unspecified time in the past and the results/effects are still relevant now.
[|Human|] 
Use Present Perfect instead of Present Simple when it’s necessary.