must endeavor
Verbo regular: endeavor - endeavored- endeavored

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must endeavor
you must endeavor
he must endeavor
we must endeavor
you must endeavor
they must endeavor 	I must be endeavoring
you must be endeavoring
he must be endeavoring
we must be endeavoring
you must be endeavoring
they must be endeavoring	I must have endeavored
you must have endeavored
he must have endeavored
we must have endeavored
you must have endeavored
they must have endeavored	I must have been endeavoring
you must have been endeavoring
he must have been endeavoring
we must have been endeavoring
you must have been endeavoring
they must have been endeavoring	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't endeavor
you mustn't endeavor
he mustn't endeavor
we mustn't endeavor
you mustn't endeavor
they mustn't endeavor 	I mustn't be endeavoring
you mustn't be endeavoring
he mustn't be endeavoring
we mustn't be endeavoring
you mustn't be endeavoring
they mustn't be endeavoring	I mustn't have endeavored
you mustn't have endeavored
he mustn't have endeavored
we mustn't have endeavored
you mustn't have endeavored
they mustn't have endeavored	I mustn't have been endeavoring
you mustn't have been endeavoring
he mustn't have been endeavoring
we mustn't have been endeavoring
you mustn't have been endeavoring
they mustn't have been endeavoring	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I endeavor?
must you endeavor?
must he endeavor?
must we endeavor?
must you endeavor?
must they endeavor? 	must I be endeavoring?
must you be endeavoring?
must he be endeavoring?
must we be endeavoring?
must you be endeavoring?
must they be endeavoring? 	must I have endeavored?
must you have endeavored?
must he have endeavored?
must we have endeavored?
must you have endeavored?
must they have endeavored? 	must I have been endeavoring?
must you have been endeavoring?
must he have been endeavoring?
must we have been endeavoring?
must you have been endeavoring?
must they have been endeavoring? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I endeavor?
mustn't you endeavor?
mustn't he endeavor?
mustn't we endeavor?
mustn't you endeavor?
mustn't they endeavor? 	mustn't I be endeavoring?
mustn't you be endeavoring?
mustn't he be endeavoring?
mustn't we be endeavoring?
mustn't you be endeavoring?
mustn't they be endeavoring? 	mustn't I have endeavored?
mustn't you have endeavored?
mustn't he have endeavored?
mustn't we have endeavored?
mustn't you have endeavored?
mustn't they have endeavored? 	mustn't I have been endeavoring?
mustn't you have been endeavoring?
mustn't he have been endeavoring?
mustn't we have been endeavoring?
mustn't you have been endeavoring?
mustn't they have been endeavoring?