could meliorate
Verbe régulier : meliorate - meliorated- meliorated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could meliorate
you could meliorate
he could meliorate
we could meliorate
you could meliorate
they could meliorate 	I could be meliorating
you could be meliorating
he could be meliorating
we could be meliorating
you could be meliorating
they could be meliorating	I could have meliorated
you could have meliorated
he could have meliorated
we could have meliorated
you could have meliorated
they could have meliorated	I could have been meliorating
you could have been meliorating
he could have been meliorating
we could have been meliorating
you could have been meliorating
they could have been meliorating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not meliorate
you could not meliorate
he could not meliorate
we could not meliorate
you could not meliorate
they could not meliorate 	I could not be meliorating
you could not be meliorating
he could not be meliorating
we could not be meliorating
you could not be meliorating
they could not be meliorating	I could not have meliorated
you could not have meliorated
he could not have meliorated
we could not have meliorated
you could not have meliorated
they could not have meliorated	I could not have been meliorating
you could not have been meliorating
he could not have been meliorating
we could not have been meliorating
you could not have been meliorating
they could not have been meliorating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I meliorate?
could you meliorate?
could he meliorate?
could we meliorate?
could you meliorate?
could they meliorate? 	could I be meliorating?
could you be meliorating?
could he be meliorating?
could we be meliorating?
could you be meliorating?
could they be meliorating? 	could I have meliorated?
could you have meliorated?
could he have meliorated?
could we have meliorated?
could you have meliorated?
could they have meliorated? 	could I have been meliorating?
could you have been meliorating?
could he have been meliorating?
could we have been meliorating?
could you have been meliorating?
could they have been meliorating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not meliorate?
could you not meliorate?
could he not meliorate?
could we not meliorate?
could you not meliorate?
could they not meliorate? 	could I not be meliorating?
could you not be meliorating?
could he not be meliorating?
could we not be meliorating?
could you not be meliorating?
could they not be meliorating? 	could I not have meliorated?
could you not have meliorated?
could he not have meliorated?
could we not have meliorated?
could you not have meliorated?
could they not have meliorated? 	could I not have been meliorating?
could you not have been meliorating?
could he not have been meliorating?
could we not have been meliorating?
could you not have been meliorating?
could they not have been meliorating?