must forgo
Verbo regular: forgo - forgoed- forgoed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must forgo
you must forgo
he must forgo
we must forgo
you must forgo
they must forgo 	I must be forgoing
you must be forgoing
he must be forgoing
we must be forgoing
you must be forgoing
they must be forgoing	I must have forgoed
you must have forgoed
he must have forgoed
we must have forgoed
you must have forgoed
they must have forgoed	I must have been forgoing
you must have been forgoing
he must have been forgoing
we must have been forgoing
you must have been forgoing
they must have been forgoing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not forgo
you must not forgo
he must not forgo
we must not forgo
you must not forgo
they must not forgo 	I must not be forgoing
you must not be forgoing
he must not be forgoing
we must not be forgoing
you must not be forgoing
they must not be forgoing	I must not have forgoed
you must not have forgoed
he must not have forgoed
we must not have forgoed
you must not have forgoed
they must not have forgoed	I must not have been forgoing
you must not have been forgoing
he must not have been forgoing
we must not have been forgoing
you must not have been forgoing
they must not have been forgoing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I forgo?
must you forgo?
must he forgo?
must we forgo?
must you forgo?
must they forgo? 	must I be forgoing?
must you be forgoing?
must he be forgoing?
must we be forgoing?
must you be forgoing?
must they be forgoing? 	must I have forgoed?
must you have forgoed?
must he have forgoed?
must we have forgoed?
must you have forgoed?
must they have forgoed? 	must I have been forgoing?
must you have been forgoing?
must he have been forgoing?
must we have been forgoing?
must you have been forgoing?
must they have been forgoing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not forgo?
must you not forgo?
must he not forgo?
must we not forgo?
must you not forgo?
must they not forgo? 	must I not be forgoing?
must you not be forgoing?
must he not be forgoing?
must we not be forgoing?
must you not be forgoing?
must they not be forgoing? 	must I not have forgoed?
must you not have forgoed?
must he not have forgoed?
must we not have forgoed?
must you not have forgoed?
must they not have forgoed? 	must I not have been forgoing?
must you not have been forgoing?
must he not have been forgoing?
must we not have been forgoing?
must you not have been forgoing?
must they not have been forgoing?