English verb conjugation
MUST CLOBBER

Regular verb: clobber - clobbered - clobbered

Affirmation

Simple form	V-ing form
I must clobber you must clobber he must clobber we must clobber you must clobber they must clobber	I must be clobbering you must be clobbering he must be clobbering we must be clobbering you must be clobbering they must be clobbering
Perfect	V-ing perfect
I must have clobbered you must have clobbered he must have clobbered we must have clobbered you must have clobbered they must have clobbered	I must have been clobbering you must have been clobbering he must have been clobbering we must have been clobbering you must have been clobbering they must have been clobbering

Negation

Simple form	V-ing form
I mustn't clobber you mustn't clobber he mustn't clobber we mustn't clobber you mustn't clobber they mustn't clobber	I mustn't be clobbering you mustn't be clobbering he mustn't be clobbering we mustn't be clobbering you mustn't be clobbering they mustn't be clobbering
Perfect	V-ing perfect
I mustn't have clobbered you mustn't have clobbered he mustn't have clobbered we mustn't have clobbered you mustn't have clobbered they mustn't have clobbered	I mustn't have been clobbering you mustn't have been clobbering he mustn't have been clobbering we mustn't have been clobbering you mustn't have been clobbering they mustn't have been clobbering

Interrogative form

Simple form	V-ing form
must I clobber? must you clobber? must he clobber? must we clobber? must you clobber? must they clobber?	must I be clobbering? must you be clobbering? must he be clobbering? must we be clobbering? must you be clobbering? must they be clobbering?
Perfect	V-ing perfect
must I have clobbered? must you have clobbered? must he have clobbered? must we have clobbered? must you have clobbered? must they have clobbered?	must I have been clobbering? must you have been clobbering? must he have been clobbering? must we have been clobbering? must you have been clobbering? must they have been clobbering?

Interro-negative form

Simple form	V-ing form
mustn't I clobber? mustn't you clobber? mustn't he clobber? mustn't we clobber? mustn't you clobber? mustn't they clobber?	mustn't I be clobbering? mustn't you be clobbering? mustn't he be clobbering? mustn't we be clobbering? mustn't you be clobbering? mustn't they be clobbering?
Perfect	V-ing perfect
mustn't I have clobbered? mustn't you have clobbered? mustn't he have clobbered? mustn't we have clobbered? mustn't you have clobbered? mustn't they have clobbered?	mustn't I have been clobbering? mustn't you have been clobbering? mustn't he have been clobbering? mustn't we have been clobbering? mustn't you have been clobbering? mustn't they have been clobbering?