must circuit
Regular verb: circuit - circuited- circuited

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must circuit
you must circuit
she must circuit
we must circuit
you must circuit
they must circuit 	I must be circuiting
you must be circuiting
she must be circuiting
we must be circuiting
you must be circuiting
they must be circuiting	I must have circuited
you must have circuited
she must have circuited
we must have circuited
you must have circuited
they must have circuited	I must have been circuiting
you must have been circuiting
she must have been circuiting
we must have been circuiting
you must have been circuiting
they must have been circuiting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't circuit
you mustn't circuit
she mustn't circuit
we mustn't circuit
you mustn't circuit
they mustn't circuit 	I mustn't be circuiting
you mustn't be circuiting
she mustn't be circuiting
we mustn't be circuiting
you mustn't be circuiting
they mustn't be circuiting	I mustn't have circuited
you mustn't have circuited
she mustn't have circuited
we mustn't have circuited
you mustn't have circuited
they mustn't have circuited	I mustn't have been circuiting
you mustn't have been circuiting
she mustn't have been circuiting
we mustn't have been circuiting
you mustn't have been circuiting
they mustn't have been circuiting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I circuit?
must you circuit?
must she circuit?
must we circuit?
must you circuit?
must they circuit? 	must I be circuiting?
must you be circuiting?
must she be circuiting?
must we be circuiting?
must you be circuiting?
must they be circuiting? 	must I have circuited?
must you have circuited?
must she have circuited?
must we have circuited?
must you have circuited?
must they have circuited? 	must I have been circuiting?
must you have been circuiting?
must she have been circuiting?
must we have been circuiting?
must you have been circuiting?
must they have been circuiting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I circuit?
mustn't you circuit?
mustn't she circuit?
mustn't we circuit?
mustn't you circuit?
mustn't they circuit? 	mustn't I be circuiting?
mustn't you be circuiting?
mustn't she be circuiting?
mustn't we be circuiting?
mustn't you be circuiting?
mustn't they be circuiting? 	mustn't I have circuited?
mustn't you have circuited?
mustn't she have circuited?
mustn't we have circuited?
mustn't you have circuited?
mustn't they have circuited? 	mustn't I have been circuiting?
mustn't you have been circuiting?
mustn't she have been circuiting?
mustn't we have been circuiting?
mustn't you have been circuiting?
mustn't they have been circuiting?