could systemize
Verbo regular: systemize - systemized- systemized

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could systemize
you could systemize
he could systemize
we could systemize
you could systemize
they could systemize 	I could be systemizing
you could be systemizing
he could be systemizing
we could be systemizing
you could be systemizing
they could be systemizing	I could have systemized
you could have systemized
he could have systemized
we could have systemized
you could have systemized
they could have systemized	I could have been systemizing
you could have been systemizing
he could have been systemizing
we could have been systemizing
you could have been systemizing
they could have been systemizing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not systemize
you could not systemize
he could not systemize
we could not systemize
you could not systemize
they could not systemize 	I could not be systemizing
you could not be systemizing
he could not be systemizing
we could not be systemizing
you could not be systemizing
they could not be systemizing	I could not have systemized
you could not have systemized
he could not have systemized
we could not have systemized
you could not have systemized
they could not have systemized	I could not have been systemizing
you could not have been systemizing
he could not have been systemizing
we could not have been systemizing
you could not have been systemizing
they could not have been systemizing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I systemize?
could you systemize?
could he systemize?
could we systemize?
could you systemize?
could they systemize? 	could I be systemizing?
could you be systemizing?
could he be systemizing?
could we be systemizing?
could you be systemizing?
could they be systemizing? 	could I have systemized?
could you have systemized?
could he have systemized?
could we have systemized?
could you have systemized?
could they have systemized? 	could I have been systemizing?
could you have been systemizing?
could he have been systemizing?
could we have been systemizing?
could you have been systemizing?
could they have been systemizing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not systemize?
could you not systemize?
could he not systemize?
could we not systemize?
could you not systemize?
could they not systemize? 	could I not be systemizing?
could you not be systemizing?
could he not be systemizing?
could we not be systemizing?
could you not be systemizing?
could they not be systemizing? 	could I not have systemized?
could you not have systemized?
could he not have systemized?
could we not have systemized?
could you not have systemized?
could they not have systemized? 	could I not have been systemizing?
could you not have been systemizing?
could he not have been systemizing?
could we not have been systemizing?
could you not have been systemizing?
could they not have been systemizing?