English verb conjugation
COULD PITCH

Regular verb: pitch - pitched - pitched

Affirmation

Simple form	V-ing form
I could pitch you could pitch he could pitch we could pitch you could pitch they could pitch	I could be pitching you could be pitching he could be pitching we could be pitching you could be pitching they could be pitching
Perfect	V-ing perfect
I could have pitched you could have pitched he could have pitched we could have pitched you could have pitched they could have pitched	I could have been pitching you could have been pitching he could have been pitching we could have been pitching you could have been pitching they could have been pitching

Negation

Simple form	V-ing form
I could not pitch you could not pitch he could not pitch we could not pitch you could not pitch they could not pitch	I could not be pitching you could not be pitching he could not be pitching we could not be pitching you could not be pitching they could not be pitching
Perfect	V-ing perfect
I could not have pitched you could not have pitched he could not have pitched we could not have pitched you could not have pitched they could not have pitched	I could not have been pitching you could not have been pitching he could not have been pitching we could not have been pitching you could not have been pitching they could not have been pitching

Interrogative form

Simple form	V-ing form
could I pitch? could you pitch? could he pitch? could we pitch? could you pitch? could they pitch?	could I be pitching? could you be pitching? could he be pitching? could we be pitching? could you be pitching? could they be pitching?
Perfect	V-ing perfect
could I have pitched? could you have pitched? could he have pitched? could we have pitched? could you have pitched? could they have pitched?	could I have been pitching? could you have been pitching? could he have been pitching? could we have been pitching? could you have been pitching? could they have been pitching?

Interro-negative form

Simple form	V-ing form
could I not pitch? could you not pitch? could he not pitch? could we not pitch? could you not pitch? could they not pitch?	could I not be pitching? could you not be pitching? could he not be pitching? could we not be pitching? could you not be pitching? could they not be pitching?
Perfect	V-ing perfect
could I not have pitched? could you not have pitched? could he not have pitched? could we not have pitched? could you not have pitched? could they not have pitched?	could I not have been pitching? could you not have been pitching? could he not have been pitching? could we not have been pitching? could you not have been pitching? could they not have been pitching?