must foist
Verbo regular: foist - foisted- foisted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must foist
you must foist
he must foist
we must foist
you must foist
they must foist 	I must be foisting
you must be foisting
he must be foisting
we must be foisting
you must be foisting
they must be foisting	I must have foisted
you must have foisted
he must have foisted
we must have foisted
you must have foisted
they must have foisted	I must have been foisting
you must have been foisting
he must have been foisting
we must have been foisting
you must have been foisting
they must have been foisting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not foist
you must not foist
he must not foist
we must not foist
you must not foist
they must not foist 	I must not be foisting
you must not be foisting
he must not be foisting
we must not be foisting
you must not be foisting
they must not be foisting	I must not have foisted
you must not have foisted
he must not have foisted
we must not have foisted
you must not have foisted
they must not have foisted	I must not have been foisting
you must not have been foisting
he must not have been foisting
we must not have been foisting
you must not have been foisting
they must not have been foisting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I foist?
must you foist?
must he foist?
must we foist?
must you foist?
must they foist? 	must I be foisting?
must you be foisting?
must he be foisting?
must we be foisting?
must you be foisting?
must they be foisting? 	must I have foisted?
must you have foisted?
must he have foisted?
must we have foisted?
must you have foisted?
must they have foisted? 	must I have been foisting?
must you have been foisting?
must he have been foisting?
must we have been foisting?
must you have been foisting?
must they have been foisting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not foist?
must you not foist?
must he not foist?
must we not foist?
must you not foist?
must they not foist? 	must I not be foisting?
must you not be foisting?
must he not be foisting?
must we not be foisting?
must you not be foisting?
must they not be foisting? 	must I not have foisted?
must you not have foisted?
must he not have foisted?
must we not have foisted?
must you not have foisted?
must they not have foisted? 	must I not have been foisting?
must you not have been foisting?
must he not have been foisting?
must we not have been foisting?
must you not have been foisting?
must they not have been foisting?