wrote,have written,had written,write的区别

Question

时态的区别我当然知道，就是什么时候用的问题，麻烦举几个例子，THX

Answer 1

wrote与明确的表示过去的时间状语连用。He wrote a letter yesterday.
have written用于表示对现在的影响，不与明确的时间连用。He has written two letters to her.
had written表示‘写’的动作在过去某时或某动作之前已完成或结束,无明确时间状语。He had written two letters before he went to bed.
write用于表示经常性习惯性的动作。He often writes to her.

Answer 2

这些词都跟write有关 write是写的意思是原形 是动词 wrote是它的过去式 have written用于现在完成时 had written用于过去完成时