can deteriorate
Verbo regolare: deteriorate - deteriorated- deteriorated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can deteriorate
you can deteriorate
he can deteriorate
we can deteriorate
you can deteriorate
they can deteriorate 	I can be deteriorating
you can be deteriorating
he can be deteriorating
we can be deteriorating
you can be deteriorating
they can be deteriorating	I can have deteriorated
you can have deteriorated
he can have deteriorated
we can have deteriorated
you can have deteriorated
they can have deteriorated	I can have been deteriorating
you can have been deteriorating
he can have been deteriorating
we can have been deteriorating
you can have been deteriorating
they can have been deteriorating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot deteriorate
you cannot deteriorate
he cannot deteriorate
we cannot deteriorate
you cannot deteriorate
they cannot deteriorate 	I cannot be deteriorating
you cannot be deteriorating
he cannot be deteriorating
we cannot be deteriorating
you cannot be deteriorating
they cannot be deteriorating	I cannot have deteriorated
you cannot have deteriorated
he cannot have deteriorated
we cannot have deteriorated
you cannot have deteriorated
they cannot have deteriorated	I cannot have been deteriorating
you cannot have been deteriorating
he cannot have been deteriorating
we cannot have been deteriorating
you cannot have been deteriorating
they cannot have been deteriorating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I deteriorate?
can you deteriorate?
can he deteriorate?
can we deteriorate?
can you deteriorate?
can they deteriorate? 	can I be deteriorating?
can you be deteriorating?
can he be deteriorating?
can we be deteriorating?
can you be deteriorating?
can they be deteriorating? 	can I have deteriorated?
can you have deteriorated?
can he have deteriorated?
can we have deteriorated?
can you have deteriorated?
can they have deteriorated? 	can I have been deteriorating?
can you have been deteriorating?
can he have been deteriorating?
can we have been deteriorating?
can you have been deteriorating?
can they have been deteriorating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not deteriorate?
can you not deteriorate?
can he not deteriorate?
can we not deteriorate?
can you not deteriorate?
can they not deteriorate? 	can I not be deteriorating?
can you not be deteriorating?
can he not be deteriorating?
can we not be deteriorating?
can you not be deteriorating?
can they not be deteriorating? 	can I not have deteriorated?
can you not have deteriorated?
can he not have deteriorated?
can we not have deteriorated?
can you not have deteriorated?
can they not have deteriorated? 	can I not have been deteriorating?
can you not have been deteriorating?
can he not have been deteriorating?
can we not have been deteriorating?
can you not have been deteriorating?
can they not have been deteriorating?