could toss
Regular verb: toss - tossed- tossed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I couldn't toss
you couldn't toss
he couldn't toss
we couldn't toss
you couldn't toss
they couldn't toss 	I couldn't be tossing
you couldn't be tossing
he couldn't be tossing
we couldn't be tossing
you couldn't be tossing
they couldn't be tossing	I couldn't have tossed
you couldn't have tossed
he couldn't have tossed
we couldn't have tossed
you couldn't have tossed
they couldn't have tossed	I couldn't have been tossing
you couldn't have been tossing
he couldn't have been tossing
we couldn't have been tossing
you couldn't have been tossing
they couldn't have been tossing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
couldn't I toss?
couldn't you toss?
couldn't he toss?
couldn't we toss?
couldn't you toss?
couldn't they toss? 	couldn't I be tossing?
couldn't you be tossing?
couldn't he be tossing?
couldn't we be tossing?
couldn't you be tossing?
couldn't they be tossing? 	couldn't I have tossed?
couldn't you have tossed?
couldn't he have tossed?
couldn't we have tossed?
couldn't you have tossed?
couldn't they have tossed? 	couldn't I have been tossing?
couldn't you have been tossing?
couldn't he have been tossing?
couldn't we have been tossing?
couldn't you have been tossing?
couldn't they have been tossing?