must deliberate
Regular verb: deliberate - deliberated- deliberated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must deliberate
you must deliberate
she must deliberate
we must deliberate
you must deliberate
they must deliberate 	I must be deliberating
you must be deliberating
she must be deliberating
we must be deliberating
you must be deliberating
they must be deliberating	I must have deliberated
you must have deliberated
she must have deliberated
we must have deliberated
you must have deliberated
they must have deliberated	I must have been deliberating
you must have been deliberating
she must have been deliberating
we must have been deliberating
you must have been deliberating
they must have been deliberating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't deliberate
you mustn't deliberate
she mustn't deliberate
we mustn't deliberate
you mustn't deliberate
they mustn't deliberate 	I mustn't be deliberating
you mustn't be deliberating
she mustn't be deliberating
we mustn't be deliberating
you mustn't be deliberating
they mustn't be deliberating	I mustn't have deliberated
you mustn't have deliberated
she mustn't have deliberated
we mustn't have deliberated
you mustn't have deliberated
they mustn't have deliberated	I mustn't have been deliberating
you mustn't have been deliberating
she mustn't have been deliberating
we mustn't have been deliberating
you mustn't have been deliberating
they mustn't have been deliberating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I deliberate?
must you deliberate?
must she deliberate?
must we deliberate?
must you deliberate?
must they deliberate? 	must I be deliberating?
must you be deliberating?
must she be deliberating?
must we be deliberating?
must you be deliberating?
must they be deliberating? 	must I have deliberated?
must you have deliberated?
must she have deliberated?
must we have deliberated?
must you have deliberated?
must they have deliberated? 	must I have been deliberating?
must you have been deliberating?
must she have been deliberating?
must we have been deliberating?
must you have been deliberating?
must they have been deliberating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I deliberate?
mustn't you deliberate?
mustn't she deliberate?
mustn't we deliberate?
mustn't you deliberate?
mustn't they deliberate? 	mustn't I be deliberating?
mustn't you be deliberating?
mustn't she be deliberating?
mustn't we be deliberating?
mustn't you be deliberating?
mustn't they be deliberating? 	mustn't I have deliberated?
mustn't you have deliberated?
mustn't she have deliberated?
mustn't we have deliberated?
mustn't you have deliberated?
mustn't they have deliberated? 	mustn't I have been deliberating?
mustn't you have been deliberating?
mustn't she have been deliberating?
mustn't we have been deliberating?
mustn't you have been deliberating?
mustn't they have been deliberating?