猜猜看一般过去时的形式

2021年1月8日发(作者：路锦程)
一般过去时讲解
一般过去时的形式：be动词过去时的句式
肯定句：是原来使用的is换成was;把原来使用的are换成were.
My pencil is on the desk.
I was here yesterday.昨天我在这里。
They are my students.
These rooms were very clean in the morning.
这些房间今天早上很干净。

否定句：是在was/were后面加上not
was not=wasn't
were not=weren't
I was not here yesterday昨天我不在这里。
These rooms were not very clean in the morning.
今天早上这些教室不很干净。

疑问句：
找出句子中的was或者were，把was或者were提到句首，且首字母要大写。
I was here yesterday昨天我在这里
Were you here yesterday?
These rooms were very clean in the morning.
Were these rooms very clean in the morning?
I was not here yesterday
Was you not here yesterday?
These rooms were not very clean in the morning.
Were these rooms not very clean in the morning.

含有实义动词过去式的句式
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肯定句：主语＋过去式＋其他.
They had a good time yesterday.他们昨天玩的很开心。

否定式：主语＋did not/didn't＋动词原形＋其他
先找出谓语动词，再在谓语动词前加didn't
They didn't watch TV last night.
He didn't ask her teacher for her toys.

一般疑问句：Did＋主语＋动词原形＋其他?
其肯定回答常用，主语＋did
否定回答常用主语＋didn't
-Did you go to the park yesterday?
-Yes,I did./No,I didn't.
特殊疑问句：疑问句+did+主语+动词原形+其他？