could freshen
Regular verb: freshen - freshened- freshened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could freshen
you could freshen
she could freshen
we could freshen
you could freshen
they could freshen 	I could be freshening
you could be freshening
she could be freshening
we could be freshening
you could be freshening
they could be freshening	I could have freshened
you could have freshened
she could have freshened
we could have freshened
you could have freshened
they could have freshened	I could have been freshening
you could have been freshening
she could have been freshening
we could have been freshening
you could have been freshening
they could have been freshening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't freshen
you couldn't freshen
she couldn't freshen
we couldn't freshen
you couldn't freshen
they couldn't freshen 	I couldn't be freshening
you couldn't be freshening
she couldn't be freshening
we couldn't be freshening
you couldn't be freshening
they couldn't be freshening	I couldn't have freshened
you couldn't have freshened
she couldn't have freshened
we couldn't have freshened
you couldn't have freshened
they couldn't have freshened	I couldn't have been freshening
you couldn't have been freshening
she couldn't have been freshening
we couldn't have been freshening
you couldn't have been freshening
they couldn't have been freshening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I freshen?
could you freshen?
could she freshen?
could we freshen?
could you freshen?
could they freshen? 	could I be freshening?
could you be freshening?
could she be freshening?
could we be freshening?
could you be freshening?
could they be freshening? 	could I have freshened?
could you have freshened?
could she have freshened?
could we have freshened?
could you have freshened?
could they have freshened? 	could I have been freshening?
could you have been freshening?
could she have been freshening?
could we have been freshening?
could you have been freshening?
could they have been freshening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I freshen?
couldn't you freshen?
couldn't she freshen?
couldn't we freshen?
couldn't you freshen?
couldn't they freshen? 	couldn't I be freshening?
couldn't you be freshening?
couldn't she be freshening?
couldn't we be freshening?
couldn't you be freshening?
couldn't they be freshening? 	couldn't I have freshened?
couldn't you have freshened?
couldn't she have freshened?
couldn't we have freshened?
couldn't you have freshened?
couldn't they have freshened? 	couldn't I have been freshening?
couldn't you have been freshening?
couldn't she have been freshening?
couldn't we have been freshening?
couldn't you have been freshening?
couldn't they have been freshening?