can fife
Regular verb: fife - fifed- fifed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can fife
you can fife
she can fife
we can fife
you can fife
they can fife 	I can be fifing
you can be fifing
she can be fifing
we can be fifing
you can be fifing
they can be fifing	I can have fifed
you can have fifed
she can have fifed
we can have fifed
you can have fifed
they can have fifed	I can have been fifing
you can have been fifing
she can have been fifing
we can have been fifing
you can have been fifing
they can have been fifing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot fife
you cannot fife
she cannot fife
we cannot fife
you cannot fife
they cannot fife 	I cannot be fifing
you cannot be fifing
she cannot be fifing
we cannot be fifing
you cannot be fifing
they cannot be fifing	I cannot have fifed
you cannot have fifed
she cannot have fifed
we cannot have fifed
you cannot have fifed
they cannot have fifed	I cannot have been fifing
you cannot have been fifing
she cannot have been fifing
we cannot have been fifing
you cannot have been fifing
they cannot have been fifing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I fife?
can you fife?
can she fife?
can we fife?
can you fife?
can they fife? 	can I be fifing?
can you be fifing?
can she be fifing?
can we be fifing?
can you be fifing?
can they be fifing? 	can I have fifed?
can you have fifed?
can she have fifed?
can we have fifed?
can you have fifed?
can they have fifed? 	can I have been fifing?
can you have been fifing?
can she have been fifing?
can we have been fifing?
can you have been fifing?
can they have been fifing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not fife?
can you not fife?
can she not fife?
can we not fife?
can you not fife?
can they not fife? 	can I not be fifing?
can you not be fifing?
can she not be fifing?
can we not be fifing?
can you not be fifing?
can they not be fifing? 	can I not have fifed?
can you not have fifed?
can she not have fifed?
can we not have fifed?
can you not have fifed?
can they not have fifed? 	can I not have been fifing?
can you not have been fifing?
can she not have been fifing?
can we not have been fifing?
can you not have been fifing?
can they not have been fifing?