I have learned English 变为过去式 时,have用变吗?

I have learned English 变为过去式 时,have用变吗? How long have you learned English?I have learned English () They have learned English recently. i have learned english for 3 years.这里哪里错 ______ I have learned about 2,000 English words. I don't wanted to have learned English. i have learned a lot of english in this w---------- 1.i have learned english.2.i have been learning english.这两句话 i have been learned English before. i had been learned Engli I have learned English for ten years中的learned为什么加ED Have you _____ learned English?-Yes,I’ve _ ___ learned a lot 请分析两句话的语法?I have been there twice.I have learned English for