Conjugação do verbo inglês
COULD PREEN

Verbo regular: preen - preened - preened

Afirmação

Forma simple	Forma com V-ing
I could preen you could preen he could preen we could preen you could preen they could preen	I could be preening you could be preening he could be preening we could be preening you could be preening they could be preening
Perfeito	Perfeito com V-ing
I could have preened you could have preened he could have preened we could have preened you could have preened they could have preened	I could have been preening you could have been preening he could have been preening we could have been preening you could have been preening they could have been preening

Negação

Forma simple	Forma com V-ing
I couldn't preen you couldn't preen he couldn't preen we couldn't preen you couldn't preen they couldn't preen	I couldn't be preening you couldn't be preening he couldn't be preening we couldn't be preening you couldn't be preening they couldn't be preening
Perfeito	Perfeito com V-ing
I couldn't have preened you couldn't have preened he couldn't have preened we couldn't have preened you couldn't have preened they couldn't have preened	I couldn't have been preening you couldn't have been preening he couldn't have been preening we couldn't have been preening you couldn't have been preening they couldn't have been preening

Forma interrogativa

Forma simple	Forma com V-ing
could I preen? could you preen? could he preen? could we preen? could you preen? could they preen?	could I be preening? could you be preening? could he be preening? could we be preening? could you be preening? could they be preening?
Perfeito	Perfeito com V-ing
could I have preened? could you have preened? could he have preened? could we have preened? could you have preened? could they have preened?	could I have been preening? could you have been preening? could he have been preening? could we have been preening? could you have been preening? could they have been preening?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I preen? couldn't you preen? couldn't he preen? couldn't we preen? couldn't you preen? couldn't they preen?	couldn't I be preening? couldn't you be preening? couldn't he be preening? couldn't we be preening? couldn't you be preening? couldn't they be preening?
Perfeito	Perfeito com V-ing
couldn't I have preened? couldn't you have preened? couldn't he have preened? couldn't we have preened? couldn't you have preened? couldn't they have preened?	couldn't I have been preening? couldn't you have been preening? couldn't he have been preening? couldn't we have been preening? couldn't you have been preening? couldn't they have been preening?