must interact
Verbo regular: interact - interacted- interacted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must interact
you must interact
she must interact
we must interact
you must interact
they must interact 	I must be interacting
you must be interacting
she must be interacting
we must be interacting
you must be interacting
they must be interacting	I must have interacted
you must have interacted
she must have interacted
we must have interacted
you must have interacted
they must have interacted	I must have been interacting
you must have been interacting
she must have been interacting
we must have been interacting
you must have been interacting
they must have been interacting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not interact
you must not interact
she must not interact
we must not interact
you must not interact
they must not interact 	I must not be interacting
you must not be interacting
she must not be interacting
we must not be interacting
you must not be interacting
they must not be interacting	I must not have interacted
you must not have interacted
she must not have interacted
we must not have interacted
you must not have interacted
they must not have interacted	I must not have been interacting
you must not have been interacting
she must not have been interacting
we must not have been interacting
you must not have been interacting
they must not have been interacting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I interact?
must you interact?
must she interact?
must we interact?
must you interact?
must they interact? 	must I be interacting?
must you be interacting?
must she be interacting?
must we be interacting?
must you be interacting?
must they be interacting? 	must I have interacted?
must you have interacted?
must she have interacted?
must we have interacted?
must you have interacted?
must they have interacted? 	must I have been interacting?
must you have been interacting?
must she have been interacting?
must we have been interacting?
must you have been interacting?
must they have been interacting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not interact?
must you not interact?
must she not interact?
must we not interact?
must you not interact?
must they not interact? 	must I not be interacting?
must you not be interacting?
must she not be interacting?
must we not be interacting?
must you not be interacting?
must they not be interacting? 	must I not have interacted?
must you not have interacted?
must she not have interacted?
must we not have interacted?
must you not have interacted?
must they not have interacted? 	must I not have been interacting?
must you not have been interacting?
must she not have been interacting?
must we not have been interacting?
must you not have been interacting?
must they not have been interacting?