can lop
Regular verb: lop - lopped- lopped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can lop
you can lop
he can lop
we can lop
you can lop
they can lop 	I can be lopping
you can be lopping
he can be lopping
we can be lopping
you can be lopping
they can be lopping	I can have lopped
you can have lopped
he can have lopped
we can have lopped
you can have lopped
they can have lopped	I can have been lopping
you can have been lopping
he can have been lopping
we can have been lopping
you can have been lopping
they can have been lopping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't lop
you can't lop
he can't lop
we can't lop
you can't lop
they can't lop 	I can't be lopping
you can't be lopping
he can't be lopping
we can't be lopping
you can't be lopping
they can't be lopping	I can't have lopped
you can't have lopped
he can't have lopped
we can't have lopped
you can't have lopped
they can't have lopped	I can't have been lopping
you can't have been lopping
he can't have been lopping
we can't have been lopping
you can't have been lopping
they can't have been lopping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I lop?
can you lop?
can he lop?
can we lop?
can you lop?
can they lop? 	can I be lopping?
can you be lopping?
can he be lopping?
can we be lopping?
can you be lopping?
can they be lopping? 	can I have lopped?
can you have lopped?
can he have lopped?
can we have lopped?
can you have lopped?
can they have lopped? 	can I have been lopping?
can you have been lopping?
can he have been lopping?
can we have been lopping?
can you have been lopping?
can they have been lopping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I lop?
can't you lop?
can't he lop?
can't we lop?
can't you lop?
can't they lop? 	can't I be lopping?
can't you be lopping?
can't he be lopping?
can't we be lopping?
can't you be lopping?
can't they be lopping? 	can't I have lopped?
can't you have lopped?
can't he have lopped?
can't we have lopped?
can't you have lopped?
can't they have lopped? 	can't I have been lopping?
can't you have been lopping?
can't he have been lopping?
can't we have been lopping?
can't you have been lopping?
can't they have been lopping?