English verb conjugation
COULD MAD

Regular verb: mad - maded - maded

Affirmation

Simple form	V-ing form
I could mad you could mad he could mad we could mad you could mad they could mad	I could be mading you could be mading he could be mading we could be mading you could be mading they could be mading
Perfect	V-ing perfect
I could have maded you could have maded he could have maded we could have maded you could have maded they could have maded	I could have been mading you could have been mading he could have been mading we could have been mading you could have been mading they could have been mading

Negation

Simple form	V-ing form
I could not mad you could not mad he could not mad we could not mad you could not mad they could not mad	I could not be mading you could not be mading he could not be mading we could not be mading you could not be mading they could not be mading
Perfect	V-ing perfect
I could not have maded you could not have maded he could not have maded we could not have maded you could not have maded they could not have maded	I could not have been mading you could not have been mading he could not have been mading we could not have been mading you could not have been mading they could not have been mading

Interrogative form

Simple form	V-ing form
could I mad? could you mad? could he mad? could we mad? could you mad? could they mad?	could I be mading? could you be mading? could he be mading? could we be mading? could you be mading? could they be mading?
Perfect	V-ing perfect
could I have maded? could you have maded? could he have maded? could we have maded? could you have maded? could they have maded?	could I have been mading? could you have been mading? could he have been mading? could we have been mading? could you have been mading? could they have been mading?

Interro-negative form

Simple form	V-ing form
could I not mad? could you not mad? could he not mad? could we not mad? could you not mad? could they not mad?	could I not be mading? could you not be mading? could he not be mading? could we not be mading? could you not be mading? could they not be mading?
Perfect	V-ing perfect
could I not have maded? could you not have maded? could he not have maded? could we not have maded? could you not have maded? could they not have maded?	could I not have been mading? could you not have been mading? could he not have been mading? could we not have been mading? could you not have been mading? could they not have been mading?