Past Tense:
* wrote (simple past tense) - Used to describe an action that happened in the past and is now finished.
* Example: "I wrote a letter yesterday."
Present Perfect Tense:
* have written (present perfect tense) - Used to describe an action that started in the past and continues to the present or has a result that affects the present.
* Example: "I have written three books in my life."
* has written (present perfect tense - used with singular third person)
* Example: "She has written a poem about the sunset."
Let me know if you'd like examples of other tenses of "write"!