Conjugação do verbo inglês
COULD TREPAN

Verbo regular: trepan - trepanned - trepanned

Afirmação

Forma simple	Forma com V-ing
I could trepan you could trepan she could trepan we could trepan you could trepan they could trepan	I could be trepanning you could be trepanning she could be trepanning we could be trepanning you could be trepanning they could be trepanning
Perfeito	Perfeito com V-ing
I could have trepanned you could have trepanned she could have trepanned we could have trepanned you could have trepanned they could have trepanned	I could have been trepanning you could have been trepanning she could have been trepanning we could have been trepanning you could have been trepanning they could have been trepanning

Negação

Forma simple	Forma com V-ing
I couldn't trepan you couldn't trepan she couldn't trepan we couldn't trepan you couldn't trepan they couldn't trepan	I couldn't be trepanning you couldn't be trepanning she couldn't be trepanning we couldn't be trepanning you couldn't be trepanning they couldn't be trepanning
Perfeito	Perfeito com V-ing
I couldn't have trepanned you couldn't have trepanned she couldn't have trepanned we couldn't have trepanned you couldn't have trepanned they couldn't have trepanned	I couldn't have been trepanning you couldn't have been trepanning she couldn't have been trepanning we couldn't have been trepanning you couldn't have been trepanning they couldn't have been trepanning

Forma interrogativa

Forma simple	Forma com V-ing
could I trepan? could you trepan? could she trepan? could we trepan? could you trepan? could they trepan?	could I be trepanning? could you be trepanning? could she be trepanning? could we be trepanning? could you be trepanning? could they be trepanning?
Perfeito	Perfeito com V-ing
could I have trepanned? could you have trepanned? could she have trepanned? could we have trepanned? could you have trepanned? could they have trepanned?	could I have been trepanning? could you have been trepanning? could she have been trepanning? could we have been trepanning? could you have been trepanning? could they have been trepanning?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I trepan? couldn't you trepan? couldn't she trepan? couldn't we trepan? couldn't you trepan? couldn't they trepan?	couldn't I be trepanning? couldn't you be trepanning? couldn't she be trepanning? couldn't we be trepanning? couldn't you be trepanning? couldn't they be trepanning?
Perfeito	Perfeito com V-ing
couldn't I have trepanned? couldn't you have trepanned? couldn't she have trepanned? couldn't we have trepanned? couldn't you have trepanned? couldn't they have trepanned?	couldn't I have been trepanning? couldn't you have been trepanning? couldn't she have been trepanning? couldn't we have been trepanning? couldn't you have been trepanning? couldn't they have been trepanning?