Do only can use with the pronouns.....
I, you, we, they
Mountain can be change by the pronoun..
It
Michael can be change by the pronoun...
He
The possessive of you is....
your
Grandfather is...
Abuelo
The possessive of They is...
Their
Does the dogs eat bones? The correct affirmative answer is...
Yes, It does
Are they singers? the negative answer is...
No, they are not
She is an actress. the correct question is...
Is she an actress?
Does is only use with the pronouns
He, She, IT
is he a policeman? the correct affirmative answer is...
Yes, he is