could singularize
Verbo regular: singularize - singularized- singularized

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could singularize
you could singularize
she could singularize
we could singularize
you could singularize
they could singularize 	I could be singularizing
you could be singularizing
she could be singularizing
we could be singularizing
you could be singularizing
they could be singularizing	I could have singularized
you could have singularized
she could have singularized
we could have singularized
you could have singularized
they could have singularized	I could have been singularizing
you could have been singularizing
she could have been singularizing
we could have been singularizing
you could have been singularizing
they could have been singularizing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not singularize
you could not singularize
she could not singularize
we could not singularize
you could not singularize
they could not singularize 	I could not be singularizing
you could not be singularizing
she could not be singularizing
we could not be singularizing
you could not be singularizing
they could not be singularizing	I could not have singularized
you could not have singularized
she could not have singularized
we could not have singularized
you could not have singularized
they could not have singularized	I could not have been singularizing
you could not have been singularizing
she could not have been singularizing
we could not have been singularizing
you could not have been singularizing
they could not have been singularizing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I singularize?
could you singularize?
could she singularize?
could we singularize?
could you singularize?
could they singularize? 	could I be singularizing?
could you be singularizing?
could she be singularizing?
could we be singularizing?
could you be singularizing?
could they be singularizing? 	could I have singularized?
could you have singularized?
could she have singularized?
could we have singularized?
could you have singularized?
could they have singularized? 	could I have been singularizing?
could you have been singularizing?
could she have been singularizing?
could we have been singularizing?
could you have been singularizing?
could they have been singularizing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not singularize?
could you not singularize?
could she not singularize?
could we not singularize?
could you not singularize?
could they not singularize? 	could I not be singularizing?
could you not be singularizing?
could she not be singularizing?
could we not be singularizing?
could you not be singularizing?
could they not be singularizing? 	could I not have singularized?
could you not have singularized?
could she not have singularized?
could we not have singularized?
could you not have singularized?
could they not have singularized? 	could I not have been singularizing?
could you not have been singularizing?
could she not have been singularizing?
could we not have been singularizing?
could you not have been singularizing?
could they not have been singularizing?