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 mustn't vegetate you mustn't vegetate she mustn't vegetate we mustn't vegetate you mustn't vegetate they mustn't vegetate
V-ing form
I mustn't be vegetating you mustn't be vegetating she mustn't be vegetating we mustn't be vegetating you mustn't be vegetating they mustn't be vegetating
Perfect
I mustn't have vegetated you mustn't have vegetated she mustn't have vegetated we mustn't have vegetated you mustn't have vegetated they mustn't have vegetated
V-ing perfect
I mustn't have been vegetating you mustn't have been vegetating she mustn't have been vegetating we mustn't have been vegetating you mustn't have been vegetating they mustn't 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
mustn't I vegetate? mustn't you vegetate? mustn't she vegetate? mustn't we vegetate? mustn't you vegetate? mustn't they vegetate?
V-ing form
mustn't I be vegetating? mustn't you be vegetating? mustn't she be vegetating? mustn't we be vegetating? mustn't you be vegetating? mustn't they be vegetating?
Perfect
mustn't I have vegetated? mustn't you have vegetated? mustn't she have vegetated? mustn't we have vegetated? mustn't you have vegetated? mustn't they have vegetated?
V-ing perfect
mustn't I have been vegetating? mustn't you have been vegetating? mustn't she have been vegetating? mustn't we have been vegetating? mustn't you have been vegetating? mustn't they have been vegetating?