有關英文發問問題 is/am/are and do/did/does

do - used for plural pronouns.
example: We do love to play music.

does - used for singular pronouns
example: He does go to school everyday.

did - past tense of 1)do and 2)does.
examples:1) We did our project last week.
2)He did his assignments yesterday.

is - used for singular pronouns EXCEPT I.
example: He is brushing his teeth.

am - used for the pronoun I.
example: I am four_eyed_ninja.

are - used for plural pronouns.
example: They are shopping.

was - past tense of is.
example: He was brushing his teeth.

were - past tense of are
example: They were shopping.

http://in.answers.yahoo.com/question/index?qid=20061108024227AA8zup6

用 is ,am or are 問問題，會在一句句子沒有動詞的時候。
Are you hungry?
Is your sister shorter than me?
Am I beautiful?
以上三句 hungry, shorter ,beautiful都是形容詞。

若一句子有動詞時會用do/did/does 問問題
Do you run fast?
Does he like cats ?
Did you visit your grandma yesterday?
run , like , visit 都是動詞，Does用於現在式第三身單數 ，Do係用於眾數
Did是過去式

2007-06-16 18:37:38 補充：
這條問題是問「有關英文發問問題，幾時用is/am/are, 幾時用do/did/does...」
不是問is/am/are and do/did/does的用法。

英文問題：
以簡單現在式發問“是不是”時用is/am/are,
以簡單現在式發問“做不做”(一個動作)時用do/does，

舉例說明：

問: Is Sandy a student? 答：Yes, Sandy is a student.
問: Am I a student? 答：Yes, you are a student.
問: Are you a student? 答：Yes, I am a student.
問: Are you (你們) students? 答：Yes, we are students.
問: Are they students? 答：Yes, they are students.

注意：
第三身(不是我，不是你)兼且是單數便用is；
第一身單數(I 我)便用am；
第二身(you 你 /你們)便用are；
其他眾數亦用are

問: Does Sandy like music? 答：Yes, Sandy likes music.
問: Do I like music? 答：Yes, you like music.
問: Do you like music? 答：Yes, I like music.
問: Do you like music? 答：Yes, we like music.
問: Do they like music? 答：Yes, they like music.


注意：
like (喜歡)亦算是動作，問 做不做那個like 的動作，即是問喜不喜歡；
第三身(不是我，不是你)兼且是單數，動詞要加s(如：likes, makes等等)，或加es(如：does, goes等等)，但問句開首的Does / Do 己表明是簡單現在式發問，動詞like便不用作任何改變；
Sandy 是第三身兼且是單數，所以問句開首用Does，其他便用Do。

你提到的 did 是 do 的過去式，表示問過去發生的動作，
舉例說明：

問: Did Sandy like music? 答：Yes, Sandy liked music.
問: Did I like music? 答：Yes, you liked music.
問: Did you like music? 答：Yes, I liked music.
問: Did you like music? 答：Yes, we liked music.
問: Did they like music? 答：Yes, they liked music.

注意：
以上全是問過去喜不喜歡，所以全部用 Did開首；
同樣，問句開首的Did 己表明是簡單過去式發問，動詞like便不用作任何改變；回答時才寫作liked，表示過去喜歡。

Is/ am/ are 都可解作　”是”的意思．

Is & am 是跟在單數名詞之後．
Are　是跟在眾數名詞之後

Is 是用在第三身的單數之後，如 He is＝他是，This is＝這是　或者 It is＝牠/ 它是

are 可以用在第三身的眾數之後，如　They are=他/牠/它/們是，　These are=這些是
are 又可以用在第二身的單數或眾數，如　You are＝你是／你們是
are 又可以用在第一身的眾數，如 We are＝我們是

am　是祇可以用在第一身的單數之後,　I am=我是

－－－
而 do/ did/ does 是跟不同的時間式有關．

do和does　是屬同一類時間式：現在式
do 是用於第三身眾數之後，或第一身，或第二身，如 Do they / Do we/ Do I/ Do you
does 是用於第三身單數之後，如 Does he/ Does she/ Does it

did　是用於過去式，沒有眾數眾數之分.亦沒有第幾身之分．
如: Did I/ Did you/ Did he/ Did she/ Did it/ Did they/ etc.

應該是這樣吧，以前老師教的．

He / She / It 用 is (present simple tense)

eg. He is a handsome boy.
She is a pretty girl.
It is a lovely cat.

I 用 am

eg. I am a girl.

You / We / They 用 are

eg. You are kind.
We are friends.
They are twins.

He / She / It 用 does (present simple tense) 同did (past tense)

eg. He does homework.
She does homework.
It does work.

eg. He did his work.
She did her work.
It did her work.

I / You / We / They 用 do (present simple tense) 同 did (past tense)

eg. I do homework.
You do homework.
We do homework.
They do homework.

eg. I did nothing.
You did nothing.
We did nothing.
They did nothing.


我細個果陣都搞到好亂，
但係而家終於搞清楚喇！

如果is/am/are採用在英文問題上,多數問題結尾是名詞或形容詞.
例如:
1) Are you strong (形容詞)?

2) Am I a cute girl(名詞)?


而do/does/did，則是問你是否.........? / 你是否曾經........?

例如：
1) Did you eat my hamburger?

2) Does she do her homework?

is/am/are use by he/she/it
do 單數
does眾數
did過去式