初中阶段,主要的时态有：
1.一般现在时,动词（或系动词）用原型（第三人称单加S或es）.
I usually go to school at seven in the morning.
2.一般过去时,动词（或系动词）用过去式.
I played football yesterday.
3.现在进行时,谓语用be+现在分词.
I am doing my homework now.
3.现在完成时,have(has)+过去分词.
I have finished my homework.
4.一般将来时,be going to/will,shall.
I am going to Shanghai for my summer holiday.
5.过去将来时,was(were) going to ,would,
Jiamin was coming to Wuhan .