could ameliorate
Verbo regular: ameliorate - ameliorated- ameliorated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could ameliorate
you could ameliorate
he could ameliorate
we could ameliorate
you could ameliorate
they could ameliorate 	I could be ameliorating
you could be ameliorating
he could be ameliorating
we could be ameliorating
you could be ameliorating
they could be ameliorating	I could have ameliorated
you could have ameliorated
he could have ameliorated
we could have ameliorated
you could have ameliorated
they could have ameliorated	I could have been ameliorating
you could have been ameliorating
he could have been ameliorating
we could have been ameliorating
you could have been ameliorating
they could have been ameliorating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't ameliorate
you couldn't ameliorate
he couldn't ameliorate
we couldn't ameliorate
you couldn't ameliorate
they couldn't ameliorate 	I couldn't be ameliorating
you couldn't be ameliorating
he couldn't be ameliorating
we couldn't be ameliorating
you couldn't be ameliorating
they couldn't be ameliorating	I couldn't have ameliorated
you couldn't have ameliorated
he couldn't have ameliorated
we couldn't have ameliorated
you couldn't have ameliorated
they couldn't have ameliorated	I couldn't have been ameliorating
you couldn't have been ameliorating
he couldn't have been ameliorating
we couldn't have been ameliorating
you couldn't have been ameliorating
they couldn't have been ameliorating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I ameliorate?
could you ameliorate?
could he ameliorate?
could we ameliorate?
could you ameliorate?
could they ameliorate? 	could I be ameliorating?
could you be ameliorating?
could he be ameliorating?
could we be ameliorating?
could you be ameliorating?
could they be ameliorating? 	could I have ameliorated?
could you have ameliorated?
could he have ameliorated?
could we have ameliorated?
could you have ameliorated?
could they have ameliorated? 	could I have been ameliorating?
could you have been ameliorating?
could he have been ameliorating?
could we have been ameliorating?
could you have been ameliorating?
could they have been ameliorating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I ameliorate?
couldn't you ameliorate?
couldn't he ameliorate?
couldn't we ameliorate?
couldn't you ameliorate?
couldn't they ameliorate? 	couldn't I be ameliorating?
couldn't you be ameliorating?
couldn't he be ameliorating?
couldn't we be ameliorating?
couldn't you be ameliorating?
couldn't they be ameliorating? 	couldn't I have ameliorated?
couldn't you have ameliorated?
couldn't he have ameliorated?
couldn't we have ameliorated?
couldn't you have ameliorated?
couldn't they have ameliorated? 	couldn't I have been ameliorating?
couldn't you have been ameliorating?
couldn't he have been ameliorating?
couldn't we have been ameliorating?
couldn't you have been ameliorating?
couldn't they have been ameliorating?