English verb conjugation
COULD REBOUND

Regular verb: rebound - rebounded - rebounded

Affirmation

Simple form	V-ing form
I could rebound you could rebound he could rebound we could rebound you could rebound they could rebound	I could be rebounding you could be rebounding he could be rebounding we could be rebounding you could be rebounding they could be rebounding
Perfect	V-ing perfect
I could have rebounded you could have rebounded he could have rebounded we could have rebounded you could have rebounded they could have rebounded	I could have been rebounding you could have been rebounding he could have been rebounding we could have been rebounding you could have been rebounding they could have been rebounding

Negation

Simple form	V-ing form
I couldn't rebound you couldn't rebound he couldn't rebound we couldn't rebound you couldn't rebound they couldn't rebound	I couldn't be rebounding you couldn't be rebounding he couldn't be rebounding we couldn't be rebounding you couldn't be rebounding they couldn't be rebounding
Perfect	V-ing perfect
I couldn't have rebounded you couldn't have rebounded he couldn't have rebounded we couldn't have rebounded you couldn't have rebounded they couldn't have rebounded	I couldn't have been rebounding you couldn't have been rebounding he couldn't have been rebounding we couldn't have been rebounding you couldn't have been rebounding they couldn't have been rebounding

Interrogative form

Simple form	V-ing form
could I rebound? could you rebound? could he rebound? could we rebound? could you rebound? could they rebound?	could I be rebounding? could you be rebounding? could he be rebounding? could we be rebounding? could you be rebounding? could they be rebounding?
Perfect	V-ing perfect
could I have rebounded? could you have rebounded? could he have rebounded? could we have rebounded? could you have rebounded? could they have rebounded?	could I have been rebounding? could you have been rebounding? could he have been rebounding? could we have been rebounding? could you have been rebounding? could they have been rebounding?

Interro-negative form

Simple form	V-ing form
couldn't I rebound? couldn't you rebound? couldn't he rebound? couldn't we rebound? couldn't you rebound? couldn't they rebound?	couldn't I be rebounding? couldn't you be rebounding? couldn't he be rebounding? couldn't we be rebounding? couldn't you be rebounding? couldn't they be rebounding?
Perfect	V-ing perfect
couldn't I have rebounded? couldn't you have rebounded? couldn't he have rebounded? couldn't we have rebounded? couldn't you have rebounded? couldn't they have rebounded?	couldn't I have been rebounding? couldn't you have been rebounding? couldn't he have been rebounding? couldn't we have been rebounding? couldn't you have been rebounding? couldn't they have been rebounding?