请问过去式遇到he,she,it要和原形一样变化吗?比如he have要变成he has ,过去式he had 要不要变?

请问过去式遇到he,she,it要和原形一样变化吗?比如he have要变成he has ,过去式he had 要不要变? 主语是he、she、it和单数名词的时候.主语是he、she、it和单数名词的时候,名词要加S.但是如果遇到过去式的话.he arrived in beijing yesterday我不就要把动词arrived去掉ed加s...要怎样理解? 喝的过去式和原形 sold的原形和过去式 急,it was urgent that he speak to him为什么it was过去式中he speak用动词原形,而不用he spoken或he speaks. is he she it和does he she it区别 初中英语动词不规则过去式表初中的就好了,要原形和过去式, 动词原形及过去式和过去分词 regret 过去式和分词是原形吗? 英语单词原形和过去式（分类的） 英语所有过去分词 原形和过去式 she thik it is boring 过去式 think 和 is 为什么? she said that she'd rather __ the companyA didn't leave B not leavewould rather 后面有时用原形有时用过去式可否分析一下这里为什么用原形呢?本人总分不清何时用过去和原形 原形is过去式?原形d0过去式?原形Visit过去式?过去式Were原形?过去式ate原形?过去式bought原形?原形go过去式?原形SWim过去式?原形See过去式? 求It is (high) time 的用法~我知道It is (high) time that后面的从句谓语动词要用过去式或用should加动词原形,should不能省略.所以我想知道,that后面的从句谓语动词用过去式和用should+动词原形有什么区 She is airing the room now.He( )it yesterday too.用动词过去式完成句子 She looks like her mother 如果遇到要过去式,looks 要不要改成looked啊? she he it 复数