could refridgerate
Regular verb: refridgerate - refridgerated- refridgerated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could refridgerate
you could refridgerate
she could refridgerate
we could refridgerate
you could refridgerate
they could refridgerate 	I could be refridgerating
you could be refridgerating
she could be refridgerating
we could be refridgerating
you could be refridgerating
they could be refridgerating	I could have refridgerated
you could have refridgerated
she could have refridgerated
we could have refridgerated
you could have refridgerated
they could have refridgerated	I could have been refridgerating
you could have been refridgerating
she could have been refridgerating
we could have been refridgerating
you could have been refridgerating
they could have been refridgerating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't refridgerate
you couldn't refridgerate
she couldn't refridgerate
we couldn't refridgerate
you couldn't refridgerate
they couldn't refridgerate 	I couldn't be refridgerating
you couldn't be refridgerating
she couldn't be refridgerating
we couldn't be refridgerating
you couldn't be refridgerating
they couldn't be refridgerating	I couldn't have refridgerated
you couldn't have refridgerated
she couldn't have refridgerated
we couldn't have refridgerated
you couldn't have refridgerated
they couldn't have refridgerated	I couldn't have been refridgerating
you couldn't have been refridgerating
she couldn't have been refridgerating
we couldn't have been refridgerating
you couldn't have been refridgerating
they couldn't have been refridgerating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I refridgerate?
could you refridgerate?
could she refridgerate?
could we refridgerate?
could you refridgerate?
could they refridgerate? 	could I be refridgerating?
could you be refridgerating?
could she be refridgerating?
could we be refridgerating?
could you be refridgerating?
could they be refridgerating? 	could I have refridgerated?
could you have refridgerated?
could she have refridgerated?
could we have refridgerated?
could you have refridgerated?
could they have refridgerated? 	could I have been refridgerating?
could you have been refridgerating?
could she have been refridgerating?
could we have been refridgerating?
could you have been refridgerating?
could they have been refridgerating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I refridgerate?
couldn't you refridgerate?
couldn't she refridgerate?
couldn't we refridgerate?
couldn't you refridgerate?
couldn't they refridgerate? 	couldn't I be refridgerating?
couldn't you be refridgerating?
couldn't she be refridgerating?
couldn't we be refridgerating?
couldn't you be refridgerating?
couldn't they be refridgerating? 	couldn't I have refridgerated?
couldn't you have refridgerated?
couldn't she have refridgerated?
couldn't we have refridgerated?
couldn't you have refridgerated?
couldn't they have refridgerated? 	couldn't I have been refridgerating?
couldn't you have been refridgerating?
couldn't she have been refridgerating?
couldn't we have been refridgerating?
couldn't you have been refridgerating?
couldn't they have been refridgerating?