didn't 后面接动词原形 还是过去式

didn't 后面接动词原形 还是过去式 didn't后面动词用原形还是过去式?句子中的didn't后面的动词用原形还是用过去式? 例如 I didn't do it and 动词加过去式还是原形? It is a good time后面接动词原形,不定式,动名词,还是动词过去式? 为什么didn't 后面要跟动词原形 was后面的动词是原形还是过去式? he didn't come to school because he (had/have)a high fever.because 后面还是动词原形吗 was后面+原形还是过去式? 过去式的用法be动词的过去式或had后面的动词用原形还是动词过去式?举例! 过去式后面用动词原形吗?还是也用过去式?还是只有个别例外? I didn't pay attention to what Linda said.中'said应该是动词原形吧?did,后面不是接动词原形吗? 动词过去式后面是否跟原形 动词变为过去式后面是否跟原形 used to后面是跟动词原形还是动词过去式、过去分词?’ become 后面是接动词原形还是动词不定式啊? let后面接动词原形还是let's后面接动词原形 go shopping的过去式,顺别加一句,was后面加动词的ing形式还是原形,所有过去式动词都这样吗? 助动词后面要加动词原形吗比如说：i didn't know