can fragment
Regular verb: fragment - fragmented- fragmented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can fragment
you can fragment
he can fragment
we can fragment
you can fragment
they can fragment 	I can be fragmenting
you can be fragmenting
he can be fragmenting
we can be fragmenting
you can be fragmenting
they can be fragmenting	I can have fragmented
you can have fragmented
he can have fragmented
we can have fragmented
you can have fragmented
they can have fragmented	I can have been fragmenting
you can have been fragmenting
he can have been fragmenting
we can have been fragmenting
you can have been fragmenting
they can have been fragmenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't fragment
you can't fragment
he can't fragment
we can't fragment
you can't fragment
they can't fragment 	I can't be fragmenting
you can't be fragmenting
he can't be fragmenting
we can't be fragmenting
you can't be fragmenting
they can't be fragmenting	I can't have fragmented
you can't have fragmented
he can't have fragmented
we can't have fragmented
you can't have fragmented
they can't have fragmented	I can't have been fragmenting
you can't have been fragmenting
he can't have been fragmenting
we can't have been fragmenting
you can't have been fragmenting
they can't have been fragmenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I fragment?
can you fragment?
can he fragment?
can we fragment?
can you fragment?
can they fragment? 	can I be fragmenting?
can you be fragmenting?
can he be fragmenting?
can we be fragmenting?
can you be fragmenting?
can they be fragmenting? 	can I have fragmented?
can you have fragmented?
can he have fragmented?
can we have fragmented?
can you have fragmented?
can they have fragmented? 	can I have been fragmenting?
can you have been fragmenting?
can he have been fragmenting?
can we have been fragmenting?
can you have been fragmenting?
can they have been fragmenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I fragment?
can't you fragment?
can't he fragment?
can't we fragment?
can't you fragment?
can't they fragment? 	can't I be fragmenting?
can't you be fragmenting?
can't he be fragmenting?
can't we be fragmenting?
can't you be fragmenting?
can't they be fragmenting? 	can't I have fragmented?
can't you have fragmented?
can't he have fragmented?
can't we have fragmented?
can't you have fragmented?
can't they have fragmented? 	can't I have been fragmenting?
can't you have been fragmenting?
can't he have been fragmenting?
can't we have been fragmenting?
can't you have been fragmenting?
can't they have been fragmenting?