could loosen
Verbo regolare: loosen - loosened- loosened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could loosen
you could loosen
he could loosen
we could loosen
you could loosen
they could loosen 	I could be loosening
you could be loosening
he could be loosening
we could be loosening
you could be loosening
they could be loosening	I could have loosened
you could have loosened
he could have loosened
we could have loosened
you could have loosened
they could have loosened	I could have been loosening
you could have been loosening
he could have been loosening
we could have been loosening
you could have been loosening
they could have been loosening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't loosen
you couldn't loosen
he couldn't loosen
we couldn't loosen
you couldn't loosen
they couldn't loosen 	I couldn't be loosening
you couldn't be loosening
he couldn't be loosening
we couldn't be loosening
you couldn't be loosening
they couldn't be loosening	I couldn't have loosened
you couldn't have loosened
he couldn't have loosened
we couldn't have loosened
you couldn't have loosened
they couldn't have loosened	I couldn't have been loosening
you couldn't have been loosening
he couldn't have been loosening
we couldn't have been loosening
you couldn't have been loosening
they couldn't have been loosening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I loosen?
could you loosen?
could he loosen?
could we loosen?
could you loosen?
could they loosen? 	could I be loosening?
could you be loosening?
could he be loosening?
could we be loosening?
could you be loosening?
could they be loosening? 	could I have loosened?
could you have loosened?
could he have loosened?
could we have loosened?
could you have loosened?
could they have loosened? 	could I have been loosening?
could you have been loosening?
could he have been loosening?
could we have been loosening?
could you have been loosening?
could they have been loosening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I loosen?
couldn't you loosen?
couldn't he loosen?
couldn't we loosen?
couldn't you loosen?
couldn't they loosen? 	couldn't I be loosening?
couldn't you be loosening?
couldn't he be loosening?
couldn't we be loosening?
couldn't you be loosening?
couldn't they be loosening? 	couldn't I have loosened?
couldn't you have loosened?
couldn't he have loosened?
couldn't we have loosened?
couldn't you have loosened?
couldn't they have loosened? 	couldn't I have been loosening?
couldn't you have been loosening?
couldn't he have been loosening?
couldn't we have been loosening?
couldn't you have been loosening?
couldn't they have been loosening?