tense既問題~help!

~we use the present continuous to talk about something that is in progress at or around the moment of speaking.

~we use the present simple to talk about repeated actions or habits,and things which are generally true.

~we use the present continuous for temporary situations and the present simple for permanent situations.

~when we use the present perfect continuous,the action may be finished or not finished.

~we use the present perfect simple when the action is finished.

~we use the present perfect continuous to talk about how long something has been in progress.

~we use the present perfect simple to talk about what has been achieved in a period of time.

~we use the present perfect continuous for situations which are more temporary(continuing for a short time).

~we use the present perfect simple for situations which are more permanent(continuing for a longer time).

用Present perfect（現在完成時）：
如我已經做完了功課：I have done my homework.

用過去式一定要說什麼時間
如我今天早上在我功課：I did my homework this morning。

用過去進行時也要說出某一刻時間
如他回來時我在做功課：I was doing my homework when she came。

如果你不是問英文
中文沒有時態之分，只是把句子寫通順，別出病句就可以了。

The present simple tense
如果第一人稱的話,不用加s
如果第三人稱的話,則要加s

The present continuous tense
I+am+動詞+ing
(HE,She,It)+is+動詞+ing
(You,We,They))+are+動詞+ing

The past simple tense
有規則動詞和不規則動詞兩類.
規則動詞:只要加ed就行了
不規則動詞:有不同的串法

The past continuous tense
(I,He,She,It)+was+動詞+ing
(You,We,They)+are+動詞+ing

Future tense
在動詞前面加will就行了.

Present perfect continuous
(I,You,We,They)+have+過去分詞
(He,She,It)+has+過去分詞