could crystallize
Verbo regolare: crystallize - crystallized- crystallized

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could crystallize
you could crystallize
he could crystallize
we could crystallize
you could crystallize
they could crystallize 	I could be crystallizing
you could be crystallizing
he could be crystallizing
we could be crystallizing
you could be crystallizing
they could be crystallizing	I could have crystallized
you could have crystallized
he could have crystallized
we could have crystallized
you could have crystallized
they could have crystallized	I could have been crystallizing
you could have been crystallizing
he could have been crystallizing
we could have been crystallizing
you could have been crystallizing
they could have been crystallizing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't crystallize
you couldn't crystallize
he couldn't crystallize
we couldn't crystallize
you couldn't crystallize
they couldn't crystallize 	I couldn't be crystallizing
you couldn't be crystallizing
he couldn't be crystallizing
we couldn't be crystallizing
you couldn't be crystallizing
they couldn't be crystallizing	I couldn't have crystallized
you couldn't have crystallized
he couldn't have crystallized
we couldn't have crystallized
you couldn't have crystallized
they couldn't have crystallized	I couldn't have been crystallizing
you couldn't have been crystallizing
he couldn't have been crystallizing
we couldn't have been crystallizing
you couldn't have been crystallizing
they couldn't have been crystallizing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I crystallize?
could you crystallize?
could he crystallize?
could we crystallize?
could you crystallize?
could they crystallize? 	could I be crystallizing?
could you be crystallizing?
could he be crystallizing?
could we be crystallizing?
could you be crystallizing?
could they be crystallizing? 	could I have crystallized?
could you have crystallized?
could he have crystallized?
could we have crystallized?
could you have crystallized?
could they have crystallized? 	could I have been crystallizing?
could you have been crystallizing?
could he have been crystallizing?
could we have been crystallizing?
could you have been crystallizing?
could they have been crystallizing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I crystallize?
couldn't you crystallize?
couldn't he crystallize?
couldn't we crystallize?
couldn't you crystallize?
couldn't they crystallize? 	couldn't I be crystallizing?
couldn't you be crystallizing?
couldn't he be crystallizing?
couldn't we be crystallizing?
couldn't you be crystallizing?
couldn't they be crystallizing? 	couldn't I have crystallized?
couldn't you have crystallized?
couldn't he have crystallized?
couldn't we have crystallized?
couldn't you have crystallized?
couldn't they have crystallized? 	couldn't I have been crystallizing?
couldn't you have been crystallizing?
couldn't he have been crystallizing?
couldn't we have been crystallizing?
couldn't you have been crystallizing?
couldn't they have been crystallizing?