must formulate
Verbo regular: formulate - formulated- formulated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must formulate
you must formulate
she must formulate
we must formulate
you must formulate
they must formulate 	I must be formulating
you must be formulating
she must be formulating
we must be formulating
you must be formulating
they must be formulating	I must have formulated
you must have formulated
she must have formulated
we must have formulated
you must have formulated
they must have formulated	I must have been formulating
you must have been formulating
she must have been formulating
we must have been formulating
you must have been formulating
they must have been formulating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not formulate
you must not formulate
she must not formulate
we must not formulate
you must not formulate
they must not formulate 	I must not be formulating
you must not be formulating
she must not be formulating
we must not be formulating
you must not be formulating
they must not be formulating	I must not have formulated
you must not have formulated
she must not have formulated
we must not have formulated
you must not have formulated
they must not have formulated	I must not have been formulating
you must not have been formulating
she must not have been formulating
we must not have been formulating
you must not have been formulating
they must not have been formulating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I formulate?
must you formulate?
must she formulate?
must we formulate?
must you formulate?
must they formulate? 	must I be formulating?
must you be formulating?
must she be formulating?
must we be formulating?
must you be formulating?
must they be formulating? 	must I have formulated?
must you have formulated?
must she have formulated?
must we have formulated?
must you have formulated?
must they have formulated? 	must I have been formulating?
must you have been formulating?
must she have been formulating?
must we have been formulating?
must you have been formulating?
must they have been formulating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not formulate?
must you not formulate?
must she not formulate?
must we not formulate?
must you not formulate?
must they not formulate? 	must I not be formulating?
must you not be formulating?
must she not be formulating?
must we not be formulating?
must you not be formulating?
must they not be formulating? 	must I not have formulated?
must you not have formulated?
must she not have formulated?
must we not have formulated?
must you not have formulated?
must they not have formulated? 	must I not have been formulating?
must you not have been formulating?
must she not have been formulating?
must we not have been formulating?
must you not have been formulating?
must they not have been formulating?