English verb conjugation
CAN REFUND

Regular verb: refund - refunded - refunded

Affirmation

Simple form	V-ing form
I can refund you can refund he can refund we can refund you can refund they can refund	I can be refunding you can be refunding he can be refunding we can be refunding you can be refunding they can be refunding
Perfect	V-ing perfect
I can have refunded you can have refunded he can have refunded we can have refunded you can have refunded they can have refunded	I can have been refunding you can have been refunding he can have been refunding we can have been refunding you can have been refunding they can have been refunding

Negation

Simple form	V-ing form
I can't refund you can't refund he can't refund we can't refund you can't refund they can't refund	I can't be refunding you can't be refunding he can't be refunding we can't be refunding you can't be refunding they can't be refunding
Perfect	V-ing perfect
I can't have refunded you can't have refunded he can't have refunded we can't have refunded you can't have refunded they can't have refunded	I can't have been refunding you can't have been refunding he can't have been refunding we can't have been refunding you can't have been refunding they can't have been refunding

Interrogative form

Simple form	V-ing form
can I refund? can you refund? can he refund? can we refund? can you refund? can they refund?	can I be refunding? can you be refunding? can he be refunding? can we be refunding? can you be refunding? can they be refunding?
Perfect	V-ing perfect
can I have refunded? can you have refunded? can he have refunded? can we have refunded? can you have refunded? can they have refunded?	can I have been refunding? can you have been refunding? can he have been refunding? can we have been refunding? can you have been refunding? can they have been refunding?

Interro-negative form

Simple form	V-ing form
can't I refund? can't you refund? can't he refund? can't we refund? can't you refund? can't they refund?	can't I be refunding? can't you be refunding? can't he be refunding? can't we be refunding? can't you be refunding? can't they be refunding?
Perfect	V-ing perfect
can't I have refunded? can't you have refunded? can't he have refunded? can't we have refunded? can't you have refunded? can't they have refunded?	can't I have been refunding? can't you have been refunding? can't he have been refunding? can't we have been refunding? can't you have been refunding? can't they have been refunding?