could nitrify
Verbo regolare: nitrify - nitrified- nitrified

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could nitrify
you could nitrify
he could nitrify
we could nitrify
you could nitrify
they could nitrify 	I could be nitrifying
you could be nitrifying
he could be nitrifying
we could be nitrifying
you could be nitrifying
they could be nitrifying	I could have nitrified
you could have nitrified
he could have nitrified
we could have nitrified
you could have nitrified
they could have nitrified	I could have been nitrifying
you could have been nitrifying
he could have been nitrifying
we could have been nitrifying
you could have been nitrifying
they could have been nitrifying	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't nitrify
you couldn't nitrify
he couldn't nitrify
we couldn't nitrify
you couldn't nitrify
they couldn't nitrify 	I couldn't be nitrifying
you couldn't be nitrifying
he couldn't be nitrifying
we couldn't be nitrifying
you couldn't be nitrifying
they couldn't be nitrifying	I couldn't have nitrified
you couldn't have nitrified
he couldn't have nitrified
we couldn't have nitrified
you couldn't have nitrified
they couldn't have nitrified	I couldn't have been nitrifying
you couldn't have been nitrifying
he couldn't have been nitrifying
we couldn't have been nitrifying
you couldn't have been nitrifying
they couldn't have been nitrifying	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I nitrify?
could you nitrify?
could he nitrify?
could we nitrify?
could you nitrify?
could they nitrify? 	could I be nitrifying?
could you be nitrifying?
could he be nitrifying?
could we be nitrifying?
could you be nitrifying?
could they be nitrifying? 	could I have nitrified?
could you have nitrified?
could he have nitrified?
could we have nitrified?
could you have nitrified?
could they have nitrified? 	could I have been nitrifying?
could you have been nitrifying?
could he have been nitrifying?
could we have been nitrifying?
could you have been nitrifying?
could they have been nitrifying? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I nitrify?
couldn't you nitrify?
couldn't he nitrify?
couldn't we nitrify?
couldn't you nitrify?
couldn't they nitrify? 	couldn't I be nitrifying?
couldn't you be nitrifying?
couldn't he be nitrifying?
couldn't we be nitrifying?
couldn't you be nitrifying?
couldn't they be nitrifying? 	couldn't I have nitrified?
couldn't you have nitrified?
couldn't he have nitrified?
couldn't we have nitrified?
couldn't you have nitrified?
couldn't they have nitrified? 	couldn't I have been nitrifying?
couldn't you have been nitrifying?
couldn't he have been nitrifying?
couldn't we have been nitrifying?
couldn't you have been nitrifying?
couldn't they have been nitrifying?