Conjugação do verbo inglês
COULD SHEATHE

Verbo regular: sheathe - sheathed - sheathed

Afirmação

Forma simple	Forma com V-ing
I could sheathe you could sheathe she could sheathe we could sheathe you could sheathe they could sheathe	I could be sheathing you could be sheathing she could be sheathing we could be sheathing you could be sheathing they could be sheathing
Perfeito	Perfeito com V-ing
I could have sheathed you could have sheathed she could have sheathed we could have sheathed you could have sheathed they could have sheathed	I could have been sheathing you could have been sheathing she could have been sheathing we could have been sheathing you could have been sheathing they could have been sheathing

Negação

Forma simple	Forma com V-ing
I couldn't sheathe you couldn't sheathe she couldn't sheathe we couldn't sheathe you couldn't sheathe they couldn't sheathe	I couldn't be sheathing you couldn't be sheathing she couldn't be sheathing we couldn't be sheathing you couldn't be sheathing they couldn't be sheathing
Perfeito	Perfeito com V-ing
I couldn't have sheathed you couldn't have sheathed she couldn't have sheathed we couldn't have sheathed you couldn't have sheathed they couldn't have sheathed	I couldn't have been sheathing you couldn't have been sheathing she couldn't have been sheathing we couldn't have been sheathing you couldn't have been sheathing they couldn't have been sheathing

Forma interrogativa

Forma simple	Forma com V-ing
could I sheathe? could you sheathe? could she sheathe? could we sheathe? could you sheathe? could they sheathe?	could I be sheathing? could you be sheathing? could she be sheathing? could we be sheathing? could you be sheathing? could they be sheathing?
Perfeito	Perfeito com V-ing
could I have sheathed? could you have sheathed? could she have sheathed? could we have sheathed? could you have sheathed? could they have sheathed?	could I have been sheathing? could you have been sheathing? could she have been sheathing? could we have been sheathing? could you have been sheathing? could they have been sheathing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I sheathe? couldn't you sheathe? couldn't she sheathe? couldn't we sheathe? couldn't you sheathe? couldn't they sheathe?	couldn't I be sheathing? couldn't you be sheathing? couldn't she be sheathing? couldn't we be sheathing? couldn't you be sheathing? couldn't they be sheathing?
Perfeito	Perfeito com V-ing
couldn't I have sheathed? couldn't you have sheathed? couldn't she have sheathed? couldn't we have sheathed? couldn't you have sheathed? couldn't they have sheathed?	couldn't I have been sheathing? couldn't you have been sheathing? couldn't she have been sheathing? couldn't we have been sheathing? couldn't you have been sheathing? couldn't they have been sheathing?