must iris
Verbo regular: iris - irised- irised

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must iris
you must iris
he must iris
we must iris
you must iris
they must iris 	I must be irising
you must be irising
he must be irising
we must be irising
you must be irising
they must be irising	I must have irised
you must have irised
he must have irised
we must have irised
you must have irised
they must have irised	I must have been irising
you must have been irising
he must have been irising
we must have been irising
you must have been irising
they must have been irising	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not iris
you must not iris
he must not iris
we must not iris
you must not iris
they must not iris 	I must not be irising
you must not be irising
he must not be irising
we must not be irising
you must not be irising
they must not be irising	I must not have irised
you must not have irised
he must not have irised
we must not have irised
you must not have irised
they must not have irised	I must not have been irising
you must not have been irising
he must not have been irising
we must not have been irising
you must not have been irising
they must not have been irising	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I iris?
must you iris?
must he iris?
must we iris?
must you iris?
must they iris? 	must I be irising?
must you be irising?
must he be irising?
must we be irising?
must you be irising?
must they be irising? 	must I have irised?
must you have irised?
must he have irised?
must we have irised?
must you have irised?
must they have irised? 	must I have been irising?
must you have been irising?
must he have been irising?
must we have been irising?
must you have been irising?
must they have been irising? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not iris?
must you not iris?
must he not iris?
must we not iris?
must you not iris?
must they not iris? 	must I not be irising?
must you not be irising?
must he not be irising?
must we not be irising?
must you not be irising?
must they not be irising? 	must I not have irised?
must you not have irised?
must he not have irised?
must we not have irised?
must you not have irised?
must they not have irised? 	must I not have been irising?
must you not have been irising?
must he not have been irising?
must we not have been irising?
must you not have been irising?
must they not have been irising?