can refill
Regular verb: refill - refilled- refilled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can refill
you can refill
he can refill
we can refill
you can refill
they can refill 	I can be refilling
you can be refilling
he can be refilling
we can be refilling
you can be refilling
they can be refilling	I can have refilled
you can have refilled
he can have refilled
we can have refilled
you can have refilled
they can have refilled	I can have been refilling
you can have been refilling
he can have been refilling
we can have been refilling
you can have been refilling
they can have been refilling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't refill
you can't refill
he can't refill
we can't refill
you can't refill
they can't refill 	I can't be refilling
you can't be refilling
he can't be refilling
we can't be refilling
you can't be refilling
they can't be refilling	I can't have refilled
you can't have refilled
he can't have refilled
we can't have refilled
you can't have refilled
they can't have refilled	I can't have been refilling
you can't have been refilling
he can't have been refilling
we can't have been refilling
you can't have been refilling
they can't have been refilling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I refill?
can you refill?
can he refill?
can we refill?
can you refill?
can they refill? 	can I be refilling?
can you be refilling?
can he be refilling?
can we be refilling?
can you be refilling?
can they be refilling? 	can I have refilled?
can you have refilled?
can he have refilled?
can we have refilled?
can you have refilled?
can they have refilled? 	can I have been refilling?
can you have been refilling?
can he have been refilling?
can we have been refilling?
can you have been refilling?
can they have been refilling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I refill?
can't you refill?
can't he refill?
can't we refill?
can't you refill?
can't they refill? 	can't I be refilling?
can't you be refilling?
can't he be refilling?
can't we be refilling?
can't you be refilling?
can't they be refilling? 	can't I have refilled?
can't you have refilled?
can't he have refilled?
can't we have refilled?
can't you have refilled?
can't they have refilled? 	can't I have been refilling?
can't you have been refilling?
can't he have been refilling?
can't we have been refilling?
can't you have been refilling?
can't they have been refilling?