must lambaste
Regular verb: lambaste - lambasted- lambasted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must lambaste
you must lambaste
she must lambaste
we must lambaste
you must lambaste
they must lambaste 	I must be lambasting
you must be lambasting
she must be lambasting
we must be lambasting
you must be lambasting
they must be lambasting	I must have lambasted
you must have lambasted
she must have lambasted
we must have lambasted
you must have lambasted
they must have lambasted	I must have been lambasting
you must have been lambasting
she must have been lambasting
we must have been lambasting
you must have been lambasting
they must have been lambasting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't lambaste
you mustn't lambaste
she mustn't lambaste
we mustn't lambaste
you mustn't lambaste
they mustn't lambaste 	I mustn't be lambasting
you mustn't be lambasting
she mustn't be lambasting
we mustn't be lambasting
you mustn't be lambasting
they mustn't be lambasting	I mustn't have lambasted
you mustn't have lambasted
she mustn't have lambasted
we mustn't have lambasted
you mustn't have lambasted
they mustn't have lambasted	I mustn't have been lambasting
you mustn't have been lambasting
she mustn't have been lambasting
we mustn't have been lambasting
you mustn't have been lambasting
they mustn't have been lambasting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I lambaste?
must you lambaste?
must she lambaste?
must we lambaste?
must you lambaste?
must they lambaste? 	must I be lambasting?
must you be lambasting?
must she be lambasting?
must we be lambasting?
must you be lambasting?
must they be lambasting? 	must I have lambasted?
must you have lambasted?
must she have lambasted?
must we have lambasted?
must you have lambasted?
must they have lambasted? 	must I have been lambasting?
must you have been lambasting?
must she have been lambasting?
must we have been lambasting?
must you have been lambasting?
must they have been lambasting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I lambaste?
mustn't you lambaste?
mustn't she lambaste?
mustn't we lambaste?
mustn't you lambaste?
mustn't they lambaste? 	mustn't I be lambasting?
mustn't you be lambasting?
mustn't she be lambasting?
mustn't we be lambasting?
mustn't you be lambasting?
mustn't they be lambasting? 	mustn't I have lambasted?
mustn't you have lambasted?
mustn't she have lambasted?
mustn't we have lambasted?
mustn't you have lambasted?
mustn't they have lambasted? 	mustn't I have been lambasting?
mustn't you have been lambasting?
mustn't she have been lambasting?
mustn't we have been lambasting?
mustn't you have been lambasting?
mustn't they have been lambasting?