English verb conjugation
MUST SLEDGEHAMMER

Regular verb: sledgehammer - sledgehammered - sledgehammered

Affirmation

Simple form	V-ing form
I must sledgehammer you must sledgehammer he must sledgehammer we must sledgehammer you must sledgehammer they must sledgehammer	I must be sledgehammering you must be sledgehammering he must be sledgehammering we must be sledgehammering you must be sledgehammering they must be sledgehammering
Perfect	V-ing perfect
I must have sledgehammered you must have sledgehammered he must have sledgehammered we must have sledgehammered you must have sledgehammered they must have sledgehammered	I must have been sledgehammering you must have been sledgehammering he must have been sledgehammering we must have been sledgehammering you must have been sledgehammering they must have been sledgehammering

Negation

Simple form	V-ing form
I mustn't sledgehammer you mustn't sledgehammer he mustn't sledgehammer we mustn't sledgehammer you mustn't sledgehammer they mustn't sledgehammer	I mustn't be sledgehammering you mustn't be sledgehammering he mustn't be sledgehammering we mustn't be sledgehammering you mustn't be sledgehammering they mustn't be sledgehammering
Perfect	V-ing perfect
I mustn't have sledgehammered you mustn't have sledgehammered he mustn't have sledgehammered we mustn't have sledgehammered you mustn't have sledgehammered they mustn't have sledgehammered	I mustn't have been sledgehammering you mustn't have been sledgehammering he mustn't have been sledgehammering we mustn't have been sledgehammering you mustn't have been sledgehammering they mustn't have been sledgehammering

Interrogative form

Simple form	V-ing form
must I sledgehammer? must you sledgehammer? must he sledgehammer? must we sledgehammer? must you sledgehammer? must they sledgehammer?	must I be sledgehammering? must you be sledgehammering? must he be sledgehammering? must we be sledgehammering? must you be sledgehammering? must they be sledgehammering?
Perfect	V-ing perfect
must I have sledgehammered? must you have sledgehammered? must he have sledgehammered? must we have sledgehammered? must you have sledgehammered? must they have sledgehammered?	must I have been sledgehammering? must you have been sledgehammering? must he have been sledgehammering? must we have been sledgehammering? must you have been sledgehammering? must they have been sledgehammering?

Interro-negative form

Simple form	V-ing form
mustn't I sledgehammer? mustn't you sledgehammer? mustn't he sledgehammer? mustn't we sledgehammer? mustn't you sledgehammer? mustn't they sledgehammer?	mustn't I be sledgehammering? mustn't you be sledgehammering? mustn't he be sledgehammering? mustn't we be sledgehammering? mustn't you be sledgehammering? mustn't they be sledgehammering?
Perfect	V-ing perfect
mustn't I have sledgehammered? mustn't you have sledgehammered? mustn't he have sledgehammered? mustn't we have sledgehammered? mustn't you have sledgehammered? mustn't they have sledgehammered?	mustn't I have been sledgehammering? mustn't you have been sledgehammering? mustn't he have been sledgehammering? mustn't we have been sledgehammering? mustn't you have been sledgehammering? mustn't they have been sledgehammering?