can loosen
Regular verb: loosen - loosened- loosened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can loosen
you can loosen
he can loosen
we can loosen
you can loosen
they can loosen 	I can be loosening
you can be loosening
he can be loosening
we can be loosening
you can be loosening
they can be loosening	I can have loosened
you can have loosened
he can have loosened
we can have loosened
you can have loosened
they can have loosened	I can have been loosening
you can have been loosening
he can have been loosening
we can have been loosening
you can have been loosening
they can have been loosening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't loosen
you can't loosen
he can't loosen
we can't loosen
you can't loosen
they can't loosen 	I can't be loosening
you can't be loosening
he can't be loosening
we can't be loosening
you can't be loosening
they can't be loosening	I can't have loosened
you can't have loosened
he can't have loosened
we can't have loosened
you can't have loosened
they can't have loosened	I can't have been loosening
you can't have been loosening
he can't have been loosening
we can't have been loosening
you can't have been loosening
they can't have been loosening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I loosen?
can you loosen?
can he loosen?
can we loosen?
can you loosen?
can they loosen? 	can I be loosening?
can you be loosening?
can he be loosening?
can we be loosening?
can you be loosening?
can they be loosening? 	can I have loosened?
can you have loosened?
can he have loosened?
can we have loosened?
can you have loosened?
can they have loosened? 	can I have been loosening?
can you have been loosening?
can he have been loosening?
can we have been loosening?
can you have been loosening?
can they have been loosening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I loosen?
can't you loosen?
can't he loosen?
can't we loosen?
can't you loosen?
can't they loosen? 	can't I be loosening?
can't you be loosening?
can't he be loosening?
can't we be loosening?
can't you be loosening?
can't they be loosening? 	can't I have loosened?
can't you have loosened?
can't he have loosened?
can't we have loosened?
can't you have loosened?
can't they have loosened? 	can't I have been loosening?
can't you have been loosening?
can't he have been loosening?
can't we have been loosening?
can't you have been loosening?
can't they have been loosening?