must articulate
Regular verb: articulate - articulated- articulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must articulate
you must articulate
she must articulate
we must articulate
you must articulate
they must articulate 	I must be articulating
you must be articulating
she must be articulating
we must be articulating
you must be articulating
they must be articulating	I must have articulated
you must have articulated
she must have articulated
we must have articulated
you must have articulated
they must have articulated	I must have been articulating
you must have been articulating
she must have been articulating
we must have been articulating
you must have been articulating
they must have been articulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't articulate
you mustn't articulate
she mustn't articulate
we mustn't articulate
you mustn't articulate
they mustn't articulate 	I mustn't be articulating
you mustn't be articulating
she mustn't be articulating
we mustn't be articulating
you mustn't be articulating
they mustn't be articulating	I mustn't have articulated
you mustn't have articulated
she mustn't have articulated
we mustn't have articulated
you mustn't have articulated
they mustn't have articulated	I mustn't have been articulating
you mustn't have been articulating
she mustn't have been articulating
we mustn't have been articulating
you mustn't have been articulating
they mustn't have been articulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I articulate?
must you articulate?
must she articulate?
must we articulate?
must you articulate?
must they articulate? 	must I be articulating?
must you be articulating?
must she be articulating?
must we be articulating?
must you be articulating?
must they be articulating? 	must I have articulated?
must you have articulated?
must she have articulated?
must we have articulated?
must you have articulated?
must they have articulated? 	must I have been articulating?
must you have been articulating?
must she have been articulating?
must we have been articulating?
must you have been articulating?
must they have been articulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I articulate?
mustn't you articulate?
mustn't she articulate?
mustn't we articulate?
mustn't you articulate?
mustn't they articulate? 	mustn't I be articulating?
mustn't you be articulating?
mustn't she be articulating?
mustn't we be articulating?
mustn't you be articulating?
mustn't they be articulating? 	mustn't I have articulated?
mustn't you have articulated?
mustn't she have articulated?
mustn't we have articulated?
mustn't you have articulated?
mustn't they have articulated? 	mustn't I have been articulating?
mustn't you have been articulating?
mustn't she have been articulating?
mustn't we have been articulating?
mustn't you have been articulating?
mustn't they have been articulating?