English verb conjugation
CAN SHEATHE

Regular verb: sheathe - sheathed - sheathed

Affirmation

Simple form	V-ing form
I can sheathe you can sheathe she can sheathe we can sheathe you can sheathe they can sheathe	I can be sheathing you can be sheathing she 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 she 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 she 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 she 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 she 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 she 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 she 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 she sheathe? can we sheathe? can you sheathe? can they sheathe?	can I be sheathing? can you be sheathing? can she 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 she 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 she 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 she 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 she 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 she 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 she have been sheathing? can't we have been sheathing? can't you have been sheathing? can't they have been sheathing?