شرح القواعد الخاصة با verb to do

English Contractions: Do

The present and past tense of the verb do can be contracted with the negative word not.

To form the contraction, the word do, does, or did is joined with the word not and the letter o in not is replaced with an apostrophe.

do + not = don't
does doesn't
did didn't


For example:

I do not believe you. = I don't believe you.
She does not know. She doesn't know.
They did not write me. They didn't write me.


The verb do can be contracted with not in yes/no questions. Note that the position of the subject changes.

Do you not hear the baby? Don't you hear the baby?
Does she not like Tom? Doesn't she like Tom?
Did we not pass the test? Didn't we pass the test?


In informal speech, the past tense did can be contracted with wh- question words. Drop the first two letters of did and add an apostrophe.

Who did you see? = Who'd you see?
What did you play? What'd you play?
When did you start? When'd you start?
Where did they go? Where'd they go?
Why did he laugh? Why'd he laugh?
How did Tom get here? How'd Tom get here?
English Verb: To Do
The verb do is a very important verb in English. It is used to ask questions, to state simple facts, and it is used in negation.

The verb do has two conjugations in the present tense.

I do
you do
he does
she does
it does
we do
they do


The verb do means to perform or accomplish something.

She does her homework at night.
We do this all the time.
Tim does nothing all day.
I do my chores after school