Negative form
|
Subject |
Negative form |
Past habit |
Verb simple form |
Complement |
|
I You He / She / It We They |
did not (didn’t) |
use to |
spend |
a lot of money. |
Interrogative form
|
Auxiliary Did |
Subject |
Past habit |
Verb simple form |
Complement? |
|
Did |
I you he / she / it we they |
use to |
spend |
a lot of money? |
Short answers
|
Affirmative answers |
Negative answers |
||||
|
Yes, |
I you he
she we you they |
did. |
No, |
I you he
she we you they |
didn’t. |
|
(affirmative) |
David used to have very long hair when he
was 15 years old. |
|
(negative) |
David didn’t use to have very long hair when
he was 15 years old. |
|
(interrogative) |
Did David use to have very long hair when he
was 15 years old? |
|
(Aff. answer) |
Yes, he did. |
|
(Neg. answer) |
No, he didn’t. |
