I must vegetate you must vegetate she must vegetate we must vegetate you must vegetate they must vegetate
V-ing form
I must be vegetating you must be vegetating she must be vegetating we must be vegetating you must be vegetating they must be vegetating
Perfect
I must have vegetated you must have vegetated she must have vegetated we must have vegetated you must have vegetated they must have vegetated
V-ing perfect
I must have been vegetating you must have been vegetating she must have been vegetating we must have been vegetating you must have been vegetating they must have been vegetating
Negation
Simple form
I must not vegetate you must not vegetate she must not vegetate we must not vegetate you must not vegetate they must not vegetate
V-ing form
I must not be vegetating you must not be vegetating she must not be vegetating we must not be vegetating you must not be vegetating they must not be vegetating
Perfect
I must not have vegetated you must not have vegetated she must not have vegetated we must not have vegetated you must not have vegetated they must not have vegetated
V-ing perfect
I must not have been vegetating you must not have been vegetating she must not have been vegetating we must not have been vegetating you must not have been vegetating they must not have been vegetating
Interrogative form
Simple form
must I vegetate? must you vegetate? must she vegetate? must we vegetate? must you vegetate? must they vegetate?
V-ing form
must I be vegetating? must you be vegetating? must she be vegetating? must we be vegetating? must you be vegetating? must they be vegetating?
Perfect
must I have vegetated? must you have vegetated? must she have vegetated? must we have vegetated? must you have vegetated? must they have vegetated?
V-ing perfect
must I have been vegetating? must you have been vegetating? must she have been vegetating? must we have been vegetating? must you have been vegetating? must they have been vegetating?
Interro-negative form
Simple form
must I not vegetate? must you not vegetate? must she not vegetate? must we not vegetate? must you not vegetate? must they not vegetate?
V-ing form
must I not be vegetating? must you not be vegetating? must she not be vegetating? must we not be vegetating? must you not be vegetating? must they not be vegetating?
Perfect
must I not have vegetated? must you not have vegetated? must she not have vegetated? must we not have vegetated? must you not have vegetated? must they not have vegetated?
V-ing perfect
must I not have been vegetating? must you not have been vegetating? must she not have been vegetating? must we not have been vegetating? must you not have been vegetating? must they not have been vegetating?