English verb conjugation
COULD QUIT

Irregular verb: quit - quit - quit

Affirmation

Simple form	V-ing form
I could quit you could quit he could quit we could quit you could quit they could quit	I could be quitting you could be quitting he could be quitting we could be quitting you could be quitting they could be quitting
Perfect	V-ing perfect
I could have quit you could have quit he could have quit we could have quit you could have quit they could have quit	I could have been quitting you could have been quitting he could have been quitting we could have been quitting you could have been quitting they could have been quitting

Negation

Simple form	V-ing form
I could not quit you could not quit he could not quit we could not quit you could not quit they could not quit	I could not be quitting you could not be quitting he could not be quitting we could not be quitting you could not be quitting they could not be quitting
Perfect	V-ing perfect
I could not have quit you could not have quit he could not have quit we could not have quit you could not have quit they could not have quit	I could not have been quitting you could not have been quitting he could not have been quitting we could not have been quitting you could not have been quitting they could not have been quitting

Interrogative form

Simple form	V-ing form
could I quit? could you quit? could he quit? could we quit? could you quit? could they quit?	could I be quitting? could you be quitting? could he be quitting? could we be quitting? could you be quitting? could they be quitting?
Perfect	V-ing perfect
could I have quit? could you have quit? could he have quit? could we have quit? could you have quit? could they have quit?	could I have been quitting? could you have been quitting? could he have been quitting? could we have been quitting? could you have been quitting? could they have been quitting?

Interro-negative form

Simple form	V-ing form
could I not quit? could you not quit? could he not quit? could we not quit? could you not quit? could they not quit?	could I not be quitting? could you not be quitting? could he not be quitting? could we not be quitting? could you not be quitting? could they not be quitting?
Perfect	V-ing perfect
could I not have quit? could you not have quit? could he not have quit? could we not have quit? could you not have quit? could they not have quit?	could I not have been quitting? could you not have been quitting? could he not have been quitting? could we not have been quitting? could you not have been quitting? could they not have been quitting?