English verb conjugation
COULD TRAMPOLINE

Regular verb: trampoline - trampolined - trampolined

Affirmation

Simple form	V-ing form
I could trampoline you could trampoline he could trampoline we could trampoline you could trampoline they could trampoline	I could be trampolining you could be trampolining he could be trampolining we could be trampolining you could be trampolining they could be trampolining
Perfect	V-ing perfect
I could have trampolined you could have trampolined he could have trampolined we could have trampolined you could have trampolined they could have trampolined	I could have been trampolining you could have been trampolining he could have been trampolining we could have been trampolining you could have been trampolining they could have been trampolining

Negation

Simple form	V-ing form
I couldn't trampoline you couldn't trampoline he couldn't trampoline we couldn't trampoline you couldn't trampoline they couldn't trampoline	I couldn't be trampolining you couldn't be trampolining he couldn't be trampolining we couldn't be trampolining you couldn't be trampolining they couldn't be trampolining
Perfect	V-ing perfect
I couldn't have trampolined you couldn't have trampolined he couldn't have trampolined we couldn't have trampolined you couldn't have trampolined they couldn't have trampolined	I couldn't have been trampolining you couldn't have been trampolining he couldn't have been trampolining we couldn't have been trampolining you couldn't have been trampolining they couldn't have been trampolining

Interrogative form

Simple form	V-ing form
could I trampoline? could you trampoline? could he trampoline? could we trampoline? could you trampoline? could they trampoline?	could I be trampolining? could you be trampolining? could he be trampolining? could we be trampolining? could you be trampolining? could they be trampolining?
Perfect	V-ing perfect
could I have trampolined? could you have trampolined? could he have trampolined? could we have trampolined? could you have trampolined? could they have trampolined?	could I have been trampolining? could you have been trampolining? could he have been trampolining? could we have been trampolining? could you have been trampolining? could they have been trampolining?

Interro-negative form

Simple form	V-ing form
couldn't I trampoline? couldn't you trampoline? couldn't he trampoline? couldn't we trampoline? couldn't you trampoline? couldn't they trampoline?	couldn't I be trampolining? couldn't you be trampolining? couldn't he be trampolining? couldn't we be trampolining? couldn't you be trampolining? couldn't they be trampolining?
Perfect	V-ing perfect
couldn't I have trampolined? couldn't you have trampolined? couldn't he have trampolined? couldn't we have trampolined? couldn't you have trampolined? couldn't they have trampolined?	couldn't I have been trampolining? couldn't you have been trampolining? couldn't he have been trampolining? couldn't we have been trampolining? couldn't you have been trampolining? couldn't they have been trampolining?