I can obviate you can obviate he can obviate we can obviate you can obviate they can obviate
V-ing form
I can be obviating you can be obviating he can be obviating we can be obviating you can be obviating they can be obviating
Perfect
I can have obviated you can have obviated he can have obviated we can have obviated you can have obviated they can have obviated
V-ing perfect
I can have been obviating you can have been obviating he can have been obviating we can have been obviating you can have been obviating they can have been obviating
Negation
Simple form
I can't obviate you can't obviate he can't obviate we can't obviate you can't obviate they can't obviate
V-ing form
I can't be obviating you can't be obviating he can't be obviating we can't be obviating you can't be obviating they can't be obviating
Perfect
I can't have obviated you can't have obviated he can't have obviated we can't have obviated you can't have obviated they can't have obviated
V-ing perfect
I can't have been obviating you can't have been obviating he can't have been obviating we can't have been obviating you can't have been obviating they can't have been obviating
Interrogative form
Simple form
can I obviate? can you obviate? can he obviate? can we obviate? can you obviate? can they obviate?
V-ing form
can I be obviating? can you be obviating? can he be obviating? can we be obviating? can you be obviating? can they be obviating?
Perfect
can I have obviated? can you have obviated? can he have obviated? can we have obviated? can you have obviated? can they have obviated?
V-ing perfect
can I have been obviating? can you have been obviating? can he have been obviating? can we have been obviating? can you have been obviating? can they have been obviating?
Interro-negative form
Simple form
can't I obviate? can't you obviate? can't he obviate? can't we obviate? can't you obviate? can't they obviate?
V-ing form
can't I be obviating? can't you be obviating? can't he be obviating? can't we be obviating? can't you be obviating? can't they be obviating?
Perfect
can't I have obviated? can't you have obviated? can't he have obviated? can't we have obviated? can't you have obviated? can't they have obviated?
V-ing perfect
can't I have been obviating? can't you have been obviating? can't he have been obviating? can't we have been obviating? can't you have been obviating? can't they have been obviating?