could celebrate
Verbo regular: celebrate - celebrated- celebrated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could celebrate
you could celebrate
she could celebrate
we could celebrate
you could celebrate
they could celebrate 	I could be celebrating
you could be celebrating
she could be celebrating
we could be celebrating
you could be celebrating
they could be celebrating	I could have celebrated
you could have celebrated
she could have celebrated
we could have celebrated
you could have celebrated
they could have celebrated	I could have been celebrating
you could have been celebrating
she could have been celebrating
we could have been celebrating
you could have been celebrating
they could have been celebrating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not celebrate
you could not celebrate
she could not celebrate
we could not celebrate
you could not celebrate
they could not celebrate 	I could not be celebrating
you could not be celebrating
she could not be celebrating
we could not be celebrating
you could not be celebrating
they could not be celebrating	I could not have celebrated
you could not have celebrated
she could not have celebrated
we could not have celebrated
you could not have celebrated
they could not have celebrated	I could not have been celebrating
you could not have been celebrating
she could not have been celebrating
we could not have been celebrating
you could not have been celebrating
they could not have been celebrating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I celebrate?
could you celebrate?
could she celebrate?
could we celebrate?
could you celebrate?
could they celebrate? 	could I be celebrating?
could you be celebrating?
could she be celebrating?
could we be celebrating?
could you be celebrating?
could they be celebrating? 	could I have celebrated?
could you have celebrated?
could she have celebrated?
could we have celebrated?
could you have celebrated?
could they have celebrated? 	could I have been celebrating?
could you have been celebrating?
could she have been celebrating?
could we have been celebrating?
could you have been celebrating?
could they have been celebrating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not celebrate?
could you not celebrate?
could she not celebrate?
could we not celebrate?
could you not celebrate?
could they not celebrate? 	could I not be celebrating?
could you not be celebrating?
could she not be celebrating?
could we not be celebrating?
could you not be celebrating?
could they not be celebrating? 	could I not have celebrated?
could you not have celebrated?
could she not have celebrated?
could we not have celebrated?
could you not have celebrated?
could they not have celebrated? 	could I not have been celebrating?
could you not have been celebrating?
could she not have been celebrating?
could we not have been celebrating?
could you not have been celebrating?
could they not have been celebrating?