English verb conjugation
COULD TUNE UP

Regular verb: tune up - tune uped - tune uped

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I could tune up you could tune up he could tune up we could tune up you could tune up they could tune up	I could be tune uping you could be tune uping he could be tune uping we could be tune uping you could be tune uping they could be tune uping
Perfect	V-ing perfect
I could have tune uped you could have tune uped he could have tune uped we could have tune uped you could have tune uped they could have tune uped	I could have been tune uping you could have been tune uping he could have been tune uping we could have been tune uping you could have been tune uping they could have been tune uping

Negation

Simple form	V-ing form
I could not tune up you could not tune up he could not tune up we could not tune up you could not tune up they could not tune up	I could not be tune uping you could not be tune uping he could not be tune uping we could not be tune uping you could not be tune uping they could not be tune uping
Perfect	V-ing perfect
I could not have tune uped you could not have tune uped he could not have tune uped we could not have tune uped you could not have tune uped they could not have tune uped	I could not have been tune uping you could not have been tune uping he could not have been tune uping we could not have been tune uping you could not have been tune uping they could not have been tune uping

Interrogative form

Simple form	V-ing form
could I tune up? could you tune up? could he tune up? could we tune up? could you tune up? could they tune up?	could I be tune uping? could you be tune uping? could he be tune uping? could we be tune uping? could you be tune uping? could they be tune uping?
Perfect	V-ing perfect
could I have tune uped? could you have tune uped? could he have tune uped? could we have tune uped? could you have tune uped? could they have tune uped?	could I have been tune uping? could you have been tune uping? could he have been tune uping? could we have been tune uping? could you have been tune uping? could they have been tune uping?

Interro-negative form

Simple form	V-ing form
could I not tune up? could you not tune up? could he not tune up? could we not tune up? could you not tune up? could they not tune up?	could I not be tune uping? could you not be tune uping? could he not be tune uping? could we not be tune uping? could you not be tune uping? could they not be tune uping?
Perfect	V-ing perfect
could I not have tune uped? could you not have tune uped? could he not have tune uped? could we not have tune uped? could you not have tune uped? could they not have tune uped?	could I not have been tune uping? could you not have been tune uping? could he not have been tune uping? could we not have been tune uping? could you not have been tune uping? could they not have been tune uping?