I can unswathe you can unswathe he can unswathe we can unswathe you can unswathe they can unswathe
V-ing form
I can be unswathing you can be unswathing he can be unswathing we can be unswathing you can be unswathing they can be unswathing
Perfect
I can have unswathed you can have unswathed he can have unswathed we can have unswathed you can have unswathed they can have unswathed
V-ing perfect
I can have been unswathing you can have been unswathing he can have been unswathing we can have been unswathing you can have been unswathing they can have been unswathing
Negation
Simple form
I cannot unswathe you cannot unswathe he cannot unswathe we cannot unswathe you cannot unswathe they cannot unswathe
V-ing form
I cannot be unswathing you cannot be unswathing he cannot be unswathing we cannot be unswathing you cannot be unswathing they cannot be unswathing
Perfect
I cannot have unswathed you cannot have unswathed he cannot have unswathed we cannot have unswathed you cannot have unswathed they cannot have unswathed
V-ing perfect
I cannot have been unswathing you cannot have been unswathing he cannot have been unswathing we cannot have been unswathing you cannot have been unswathing they cannot have been unswathing
Interrogative form
Simple form
can I unswathe? can you unswathe? can he unswathe? can we unswathe? can you unswathe? can they unswathe?
V-ing form
can I be unswathing? can you be unswathing? can he be unswathing? can we be unswathing? can you be unswathing? can they be unswathing?
Perfect
can I have unswathed? can you have unswathed? can he have unswathed? can we have unswathed? can you have unswathed? can they have unswathed?
V-ing perfect
can I have been unswathing? can you have been unswathing? can he have been unswathing? can we have been unswathing? can you have been unswathing? can they have been unswathing?
Interro-negative form
Simple form
can I not unswathe? can you not unswathe? can he not unswathe? can we not unswathe? can you not unswathe? can they not unswathe?
V-ing form
can I not be unswathing? can you not be unswathing? can he not be unswathing? can we not be unswathing? can you not be unswathing? can they not be unswathing?
Perfect
can I not have unswathed? can you not have unswathed? can he not have unswathed? can we not have unswathed? can you not have unswathed? can they not have unswathed?
V-ing perfect
can I not have been unswathing? can you not have been unswathing? can he not have been unswathing? can we not have been unswathing? can you not have been unswathing? can they not have been unswathing?