I really don't known中为什么要加“N” don't 后不是要加动词原形吗?

I really don't known中为什么要加“N” don't 后不是要加动词原形吗? —The house was torn down.—Really?I ____ it.A.don't know B.haven't known C.didn't know D.hadn't known I really don't care! I don't really know. I really don't wanna leaveI really don't wanna Thank you very much indeed.If it had not been for your advice I really what I should have done.A.don’t know B.didn’t know C.hadn’t known D.wouldn’t have known I really don't want you to I really don't know where to I don't really care是什么意思 I really don't care 啥意思 I Don T Really Like You 歌词 I really don't feel for you Well,that was really a good meal.I＿＿you were a really good cook.B:Thank you.A.didn'tA:Well,that was really a good meal.I＿＿you were a really good cook.B:Thank you.A.didn't know B.don't know C:haven't known D.hadn't known该选哪一个啊?就 I Don't You want that.You known't me! I don't known that why I always cry for Day your mama, I really really don't know 是什么意思? I really don't I really don't know译成汉语是什么意思啊 I don't really care还是I really don't care