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