English verb conjugation
COULD TRAîNER

Regular verb: traîner - traînered - traînered

Affirmation

Simple form	V-ing form
I could traîner you could traîner he could traîner we could traîner you could traîner they could traîner	I could be traînering you could be traînering he could be traînering we could be traînering you could be traînering they could be traînering
Perfect	V-ing perfect
I could have traînered you could have traînered he could have traînered we could have traînered you could have traînered they could have traînered	I could have been traînering you could have been traînering he could have been traînering we could have been traînering you could have been traînering they could have been traînering

Negation

Simple form	V-ing form
I couldn't traîner you couldn't traîner he couldn't traîner we couldn't traîner you couldn't traîner they couldn't traîner	I couldn't be traînering you couldn't be traînering he couldn't be traînering we couldn't be traînering you couldn't be traînering they couldn't be traînering
Perfect	V-ing perfect
I couldn't have traînered you couldn't have traînered he couldn't have traînered we couldn't have traînered you couldn't have traînered they couldn't have traînered	I couldn't have been traînering you couldn't have been traînering he couldn't have been traînering we couldn't have been traînering you couldn't have been traînering they couldn't have been traînering

Interrogative form

Simple form	V-ing form
could I traîner? could you traîner? could he traîner? could we traîner? could you traîner? could they traîner?	could I be traînering? could you be traînering? could he be traînering? could we be traînering? could you be traînering? could they be traînering?
Perfect	V-ing perfect
could I have traînered? could you have traînered? could he have traînered? could we have traînered? could you have traînered? could they have traînered?	could I have been traînering? could you have been traînering? could he have been traînering? could we have been traînering? could you have been traînering? could they have been traînering?

Interro-negative form

Simple form	V-ing form
couldn't I traîner? couldn't you traîner? couldn't he traîner? couldn't we traîner? couldn't you traîner? couldn't they traîner?	couldn't I be traînering? couldn't you be traînering? couldn't he be traînering? couldn't we be traînering? couldn't you be traînering? couldn't they be traînering?
Perfect	V-ing perfect
couldn't I have traînered? couldn't you have traînered? couldn't he have traînered? couldn't we have traînered? couldn't you have traînered? couldn't they have traînered?	couldn't I have been traînering? couldn't you have been traînering? couldn't he have been traînering? couldn't we have been traînering? couldn't you have been traînering? couldn't they have been traînering?