must articulate
Regular verb: articulate - articulated- articulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must articulate
you must articulate
he must articulate
we must articulate
you must articulate
they must articulate 	I must be articulating
you must be articulating
he must be articulating
we must be articulating
you must be articulating
they must be articulating	I must have articulated
you must have articulated
he 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
he 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 must not articulate
you must not articulate
he must not articulate
we must not articulate
you must not articulate
they must not articulate 	I must not be articulating
you must not be articulating
he must not be articulating
we must not be articulating
you must not be articulating
they must not be articulating	I must not have articulated
you must not have articulated
he must not have articulated
we must not have articulated
you must not have articulated
they must not have articulated	I must not have been articulating
you must not have been articulating
he must not have been articulating
we must not have been articulating
you must not have been articulating
they must not have been articulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I articulate?
must you articulate?
must he articulate?
must we articulate?
must you articulate?
must they articulate? 	must I be articulating?
must you be articulating?
must he be articulating?
must we be articulating?
must you be articulating?
must they be articulating? 	must I have articulated?
must you have articulated?
must he 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 he 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 	
must I not articulate?
must you not articulate?
must he not articulate?
must we not articulate?
must you not articulate?
must they not articulate? 	must I not be articulating?
must you not be articulating?
must he not be articulating?
must we not be articulating?
must you not be articulating?
must they not be articulating? 	must I not have articulated?
must you not have articulated?
must he not have articulated?
must we not have articulated?
must you not have articulated?
must they not have articulated? 	must I not have been articulating?
must you not have been articulating?
must he not have been articulating?
must we not have been articulating?
must you not have been articulating?
must they not have been articulating?