can roll
Regular verb: roll - rolled- rolled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can roll
you can roll
she can roll
we can roll
you can roll
they can roll 	I can be rolling
you can be rolling
she can be rolling
we can be rolling
you can be rolling
they can be rolling	I can have rolled
you can have rolled
she can have rolled
we can have rolled
you can have rolled
they can have rolled	I can have been rolling
you can have been rolling
she can have been rolling
we can have been rolling
you can have been rolling
they can have been rolling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't roll
you can't roll
she can't roll
we can't roll
you can't roll
they can't roll 	I can't be rolling
you can't be rolling
she can't be rolling
we can't be rolling
you can't be rolling
they can't be rolling	I can't have rolled
you can't have rolled
she can't have rolled
we can't have rolled
you can't have rolled
they can't have rolled	I can't have been rolling
you can't have been rolling
she can't have been rolling
we can't have been rolling
you can't have been rolling
they can't have been rolling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I roll?
can you roll?
can she roll?
can we roll?
can you roll?
can they roll? 	can I be rolling?
can you be rolling?
can she be rolling?
can we be rolling?
can you be rolling?
can they be rolling? 	can I have rolled?
can you have rolled?
can she have rolled?
can we have rolled?
can you have rolled?
can they have rolled? 	can I have been rolling?
can you have been rolling?
can she have been rolling?
can we have been rolling?
can you have been rolling?
can they have been rolling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I roll?
can't you roll?
can't she roll?
can't we roll?
can't you roll?
can't they roll? 	can't I be rolling?
can't you be rolling?
can't she be rolling?
can't we be rolling?
can't you be rolling?
can't they be rolling? 	can't I have rolled?
can't you have rolled?
can't she have rolled?
can't we have rolled?
can't you have rolled?
can't they have rolled? 	can't I have been rolling?
can't you have been rolling?
can't she have been rolling?
can't we have been rolling?
can't you have been rolling?
can't they have been rolling?