Conjugação do verbo inglês
COULD VOLUNTEER

Verbo regular: volunteer - volunteered - volunteered

Afirmação

Forma simple	Forma com V-ing
I could volunteer you could volunteer he could volunteer we could volunteer you could volunteer they could volunteer	I could be volunteering you could be volunteering he could be volunteering we could be volunteering you could be volunteering they could be volunteering
Perfeito	Perfeito com V-ing
I could have volunteered you could have volunteered he could have volunteered we could have volunteered you could have volunteered they could have volunteered	I could have been volunteering you could have been volunteering he could have been volunteering we could have been volunteering you could have been volunteering they could have been volunteering

Negação

Forma simple	Forma com V-ing
I couldn't volunteer you couldn't volunteer he couldn't volunteer we couldn't volunteer you couldn't volunteer they couldn't volunteer	I couldn't be volunteering you couldn't be volunteering he couldn't be volunteering we couldn't be volunteering you couldn't be volunteering they couldn't be volunteering
Perfeito	Perfeito com V-ing
I couldn't have volunteered you couldn't have volunteered he couldn't have volunteered we couldn't have volunteered you couldn't have volunteered they couldn't have volunteered	I couldn't have been volunteering you couldn't have been volunteering he couldn't have been volunteering we couldn't have been volunteering you couldn't have been volunteering they couldn't have been volunteering

Forma interrogativa

Forma simple	Forma com V-ing
could I volunteer? could you volunteer? could he volunteer? could we volunteer? could you volunteer? could they volunteer?	could I be volunteering? could you be volunteering? could he be volunteering? could we be volunteering? could you be volunteering? could they be volunteering?
Perfeito	Perfeito com V-ing
could I have volunteered? could you have volunteered? could he have volunteered? could we have volunteered? could you have volunteered? could they have volunteered?	could I have been volunteering? could you have been volunteering? could he have been volunteering? could we have been volunteering? could you have been volunteering? could they have been volunteering?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I volunteer? couldn't you volunteer? couldn't he volunteer? couldn't we volunteer? couldn't you volunteer? couldn't they volunteer?	couldn't I be volunteering? couldn't you be volunteering? couldn't he be volunteering? couldn't we be volunteering? couldn't you be volunteering? couldn't they be volunteering?
Perfeito	Perfeito com V-ing
couldn't I have volunteered? couldn't you have volunteered? couldn't he have volunteered? couldn't we have volunteered? couldn't you have volunteered? couldn't they have volunteered?	couldn't I have been volunteering? couldn't you have been volunteering? couldn't he have been volunteering? couldn't we have been volunteering? couldn't you have been volunteering? couldn't they have been volunteering?