English verb conjugation
COULD INSHEATHE

Regular verb: insheathe - insheathed - insheathed

Affirmation

Simple form	V-ing form
I could insheathe you could insheathe he could insheathe we could insheathe you could insheathe they could insheathe	I could be insheathing you could be insheathing he could be insheathing we could be insheathing you could be insheathing they could be insheathing
Perfect	V-ing perfect
I could have insheathed you could have insheathed he could have insheathed we could have insheathed you could have insheathed they could have insheathed	I could have been insheathing you could have been insheathing he could have been insheathing we could have been insheathing you could have been insheathing they could have been insheathing

Negation

Simple form	V-ing form
I could not insheathe you could not insheathe he could not insheathe we could not insheathe you could not insheathe they could not insheathe	I could not be insheathing you could not be insheathing he could not be insheathing we could not be insheathing you could not be insheathing they could not be insheathing
Perfect	V-ing perfect
I could not have insheathed you could not have insheathed he could not have insheathed we could not have insheathed you could not have insheathed they could not have insheathed	I could not have been insheathing you could not have been insheathing he could not have been insheathing we could not have been insheathing you could not have been insheathing they could not have been insheathing

Interrogative form

Simple form	V-ing form
could I insheathe? could you insheathe? could he insheathe? could we insheathe? could you insheathe? could they insheathe?	could I be insheathing? could you be insheathing? could he be insheathing? could we be insheathing? could you be insheathing? could they be insheathing?
Perfect	V-ing perfect
could I have insheathed? could you have insheathed? could he have insheathed? could we have insheathed? could you have insheathed? could they have insheathed?	could I have been insheathing? could you have been insheathing? could he have been insheathing? could we have been insheathing? could you have been insheathing? could they have been insheathing?

Interro-negative form

Simple form	V-ing form
could I not insheathe? could you not insheathe? could he not insheathe? could we not insheathe? could you not insheathe? could they not insheathe?	could I not be insheathing? could you not be insheathing? could he not be insheathing? could we not be insheathing? could you not be insheathing? could they not be insheathing?
Perfect	V-ing perfect
could I not have insheathed? could you not have insheathed? could he not have insheathed? could we not have insheathed? could you not have insheathed? could they not have insheathed?	could I not have been insheathing? could you not have been insheathing? could he not have been insheathing? could we not have been insheathing? could you not have been insheathing? could they not have been insheathing?