English verb conjugation
COULD TOSS

Regular verb: toss - tossed - tossed

Affirmation

Simple form	V-ing form
I could toss you could toss he could toss we could toss you could toss they could toss	I could be tossing you could be tossing he could be tossing we could be tossing you could be tossing they could be tossing
Perfect	V-ing perfect
I could have tossed you could have tossed he could have tossed we could have tossed you could have tossed they could have tossed	I could have been tossing you could have been tossing he could have been tossing we could have been tossing you could have been tossing they could have been tossing

Negation

Simple form	V-ing form
I could not toss you could not toss he could not toss we could not toss you could not toss they could not toss	I could not be tossing you could not be tossing he could not be tossing we could not be tossing you could not be tossing they could not be tossing
Perfect	V-ing perfect
I could not have tossed you could not have tossed he could not have tossed we could not have tossed you could not have tossed they could not have tossed	I could not have been tossing you could not have been tossing he could not have been tossing we could not have been tossing you could not have been tossing they could not have been tossing

Interrogative form

Simple form	V-ing form
could I toss? could you toss? could he toss? could we toss? could you toss? could they toss?	could I be tossing? could you be tossing? could he be tossing? could we be tossing? could you be tossing? could they be tossing?
Perfect	V-ing perfect
could I have tossed? could you have tossed? could he have tossed? could we have tossed? could you have tossed? could they have tossed?	could I have been tossing? could you have been tossing? could he have been tossing? could we have been tossing? could you have been tossing? could they have been tossing?

Interro-negative form

Simple form	V-ing form
could I not toss? could you not toss? could he not toss? could we not toss? could you not toss? could they not toss?	could I not be tossing? could you not be tossing? could he not be tossing? could we not be tossing? could you not be tossing? could they not be tossing?
Perfect	V-ing perfect
could I not have tossed? could you not have tossed? could he not have tossed? could we not have tossed? could you not have tossed? could they not have tossed?	could I not have been tossing? could you not have been tossing? could he not have been tossing? could we not have been tossing? could you not have been tossing? could they not have been tossing?