can feast
Regular verb: feast - feasted- feasted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can feast
you can feast
he can feast
we can feast
you can feast
they can feast 	I can be feasting
you can be feasting
he can be feasting
we can be feasting
you can be feasting
they can be feasting	I can have feasted
you can have feasted
he can have feasted
we can have feasted
you can have feasted
they can have feasted	I can have been feasting
you can have been feasting
he can have been feasting
we can have been feasting
you can have been feasting
they can have been feasting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot feast
you cannot feast
he cannot feast
we cannot feast
you cannot feast
they cannot feast 	I cannot be feasting
you cannot be feasting
he cannot be feasting
we cannot be feasting
you cannot be feasting
they cannot be feasting	I cannot have feasted
you cannot have feasted
he cannot have feasted
we cannot have feasted
you cannot have feasted
they cannot have feasted	I cannot have been feasting
you cannot have been feasting
he cannot have been feasting
we cannot have been feasting
you cannot have been feasting
they cannot have been feasting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I feast?
can you feast?
can he feast?
can we feast?
can you feast?
can they feast? 	can I be feasting?
can you be feasting?
can he be feasting?
can we be feasting?
can you be feasting?
can they be feasting? 	can I have feasted?
can you have feasted?
can he have feasted?
can we have feasted?
can you have feasted?
can they have feasted? 	can I have been feasting?
can you have been feasting?
can he have been feasting?
can we have been feasting?
can you have been feasting?
can they have been feasting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not feast?
can you not feast?
can he not feast?
can we not feast?
can you not feast?
can they not feast? 	can I not be feasting?
can you not be feasting?
can he not be feasting?
can we not be feasting?
can you not be feasting?
can they not be feasting? 	can I not have feasted?
can you not have feasted?
can he not have feasted?
can we not have feasted?
can you not have feasted?
can they not have feasted? 	can I not have been feasting?
can you not have been feasting?
can he not have been feasting?
can we not have been feasting?
can you not have been feasting?
can they not have been feasting?