English verb conjugation
CAN SHEATHE

Regular verb: sheathe - sheathed - sheathed

Affirmation

Simple form	V-ing form
I can sheathe you can sheathe he can sheathe we can sheathe you can sheathe they can sheathe	I can be sheathing you can be sheathing he can be sheathing we can be sheathing you can be sheathing they can be sheathing
Perfect	V-ing perfect
I can have sheathed you can have sheathed he can have sheathed we can have sheathed you can have sheathed they can have sheathed	I can have been sheathing you can have been sheathing he can have been sheathing we can have been sheathing you can have been sheathing they can have been sheathing

Negation

Simple form	V-ing form
I can't sheathe you can't sheathe he can't sheathe we can't sheathe you can't sheathe they can't sheathe	I can't be sheathing you can't be sheathing he can't be sheathing we can't be sheathing you can't be sheathing they can't be sheathing
Perfect	V-ing perfect
I can't have sheathed you can't have sheathed he can't have sheathed we can't have sheathed you can't have sheathed they can't have sheathed	I can't have been sheathing you can't have been sheathing he can't have been sheathing we can't have been sheathing you can't have been sheathing they can't have been sheathing

Interrogative form

Simple form	V-ing form
can I sheathe? can you sheathe? can he sheathe? can we sheathe? can you sheathe? can they sheathe?	can I be sheathing? can you be sheathing? can he be sheathing? can we be sheathing? can you be sheathing? can they be sheathing?
Perfect	V-ing perfect
can I have sheathed? can you have sheathed? can he have sheathed? can we have sheathed? can you have sheathed? can they have sheathed?	can I have been sheathing? can you have been sheathing? can he have been sheathing? can we have been sheathing? can you have been sheathing? can they have been sheathing?

Interro-negative form

Simple form	V-ing form
can't I sheathe? can't you sheathe? can't he sheathe? can't we sheathe? can't you sheathe? can't they sheathe?	can't I be sheathing? can't you be sheathing? can't he be sheathing? can't we be sheathing? can't you be sheathing? can't they be sheathing?
Perfect	V-ing perfect
can't I have sheathed? can't you have sheathed? can't he have sheathed? can't we have sheathed? can't you have sheathed? can't they have sheathed?	can't I have been sheathing? can't you have been sheathing? can't he have been sheathing? can't we have been sheathing? can't you have been sheathing? can't they have been sheathing?