could endeavor
Verbo regular: endeavor - endeavored- endeavored

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

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not endeavor
you could not endeavor
he could not endeavor
we could not endeavor
you could not endeavor
they could not endeavor 	I could not be endeavoring
you could not be endeavoring
he could not be endeavoring
we could not be endeavoring
you could not be endeavoring
they could not be endeavoring	I could not have endeavored
you could not have endeavored
he could not have endeavored
we could not have endeavored
you could not have endeavored
they could not have endeavored	I could not have been endeavoring
you could not have been endeavoring
he could not have been endeavoring
we could not have been endeavoring
you could not have been endeavoring
they could not have been endeavoring	

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

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