I can exfoliate you can exfoliate he can exfoliate we can exfoliate you can exfoliate they can exfoliate
V-ing form
I can be exfoliating you can be exfoliating he can be exfoliating we can be exfoliating you can be exfoliating they can be exfoliating
Perfect
I can have exfoliated you can have exfoliated he can have exfoliated we can have exfoliated you can have exfoliated they can have exfoliated
V-ing perfect
I can have been exfoliating you can have been exfoliating he can have been exfoliating we can have been exfoliating you can have been exfoliating they can have been exfoliating
Negation
Simple form
I can't exfoliate you can't exfoliate he can't exfoliate we can't exfoliate you can't exfoliate they can't exfoliate
V-ing form
I can't be exfoliating you can't be exfoliating he can't be exfoliating we can't be exfoliating you can't be exfoliating they can't be exfoliating
Perfect
I can't have exfoliated you can't have exfoliated he can't have exfoliated we can't have exfoliated you can't have exfoliated they can't have exfoliated
V-ing perfect
I can't have been exfoliating you can't have been exfoliating he can't have been exfoliating we can't have been exfoliating you can't have been exfoliating they can't have been exfoliating
Interrogative form
Simple form
can I exfoliate? can you exfoliate? can he exfoliate? can we exfoliate? can you exfoliate? can they exfoliate?
V-ing form
can I be exfoliating? can you be exfoliating? can he be exfoliating? can we be exfoliating? can you be exfoliating? can they be exfoliating?
Perfect
can I have exfoliated? can you have exfoliated? can he have exfoliated? can we have exfoliated? can you have exfoliated? can they have exfoliated?
V-ing perfect
can I have been exfoliating? can you have been exfoliating? can he have been exfoliating? can we have been exfoliating? can you have been exfoliating? can they have been exfoliating?
Interro-negative form
Simple form
can't I exfoliate? can't you exfoliate? can't he exfoliate? can't we exfoliate? can't you exfoliate? can't they exfoliate?
V-ing form
can't I be exfoliating? can't you be exfoliating? can't he be exfoliating? can't we be exfoliating? can't you be exfoliating? can't they be exfoliating?
Perfect
can't I have exfoliated? can't you have exfoliated? can't he have exfoliated? can't we have exfoliated? can't you have exfoliated? can't they have exfoliated?
V-ing perfect
can't I have been exfoliating? can't you have been exfoliating? can't he have been exfoliating? can't we have been exfoliating? can't you have been exfoliating? can't they have been exfoliating?