must preinvite
Verbo regular: preinvite - preinvited- preinvited

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must preinvite
you must preinvite
he must preinvite
we must preinvite
you must preinvite
they must preinvite 	I must be preinviting
you must be preinviting
he must be preinviting
we must be preinviting
you must be preinviting
they must be preinviting	I must have preinvited
you must have preinvited
he must have preinvited
we must have preinvited
you must have preinvited
they must have preinvited	I must have been preinviting
you must have been preinviting
he must have been preinviting
we must have been preinviting
you must have been preinviting
they must have been preinviting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not preinvite
you must not preinvite
he must not preinvite
we must not preinvite
you must not preinvite
they must not preinvite 	I must not be preinviting
you must not be preinviting
he must not be preinviting
we must not be preinviting
you must not be preinviting
they must not be preinviting	I must not have preinvited
you must not have preinvited
he must not have preinvited
we must not have preinvited
you must not have preinvited
they must not have preinvited	I must not have been preinviting
you must not have been preinviting
he must not have been preinviting
we must not have been preinviting
you must not have been preinviting
they must not have been preinviting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I preinvite?
must you preinvite?
must he preinvite?
must we preinvite?
must you preinvite?
must they preinvite? 	must I be preinviting?
must you be preinviting?
must he be preinviting?
must we be preinviting?
must you be preinviting?
must they be preinviting? 	must I have preinvited?
must you have preinvited?
must he have preinvited?
must we have preinvited?
must you have preinvited?
must they have preinvited? 	must I have been preinviting?
must you have been preinviting?
must he have been preinviting?
must we have been preinviting?
must you have been preinviting?
must they have been preinviting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not preinvite?
must you not preinvite?
must he not preinvite?
must we not preinvite?
must you not preinvite?
must they not preinvite? 	must I not be preinviting?
must you not be preinviting?
must he not be preinviting?
must we not be preinviting?
must you not be preinviting?
must they not be preinviting? 	must I not have preinvited?
must you not have preinvited?
must he not have preinvited?
must we not have preinvited?
must you not have preinvited?
must they not have preinvited? 	must I not have been preinviting?
must you not have been preinviting?
must he not have been preinviting?
must we not have been preinviting?
must you not have been preinviting?
must they not have been preinviting?