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 cannot refund you cannot refund he cannot refund we cannot refund you cannot refund they cannot refund	I cannot be refunding you cannot be refunding he cannot be refunding we cannot be refunding you cannot be refunding they cannot be refunding
Perfect	V-ing perfect
I cannot have refunded you cannot have refunded he cannot have refunded we cannot have refunded you cannot have refunded they cannot have refunded	I cannot have been refunding you cannot have been refunding he cannot have been refunding we cannot have been refunding you cannot have been refunding they cannot 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 I not refund? can you not refund? can he not refund? can we not refund? can you not refund? can they not refund?	can I not be refunding? can you not be refunding? can he not be refunding? can we not be refunding? can you not be refunding? can they not be refunding?
Perfect	V-ing perfect
can I not have refunded? can you not have refunded? can he not have refunded? can we not have refunded? can you not have refunded? can they not have refunded?	can I not have been refunding? can you not have been refunding? can he not have been refunding? can we not have been refunding? can you not have been refunding? can they not have been refunding?