can roam
Regular verb: roam - roamed- roamed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can roam
you can roam
he can roam
we can roam
you can roam
they can roam 	I can be roaming
you can be roaming
he can be roaming
we can be roaming
you can be roaming
they can be roaming	I can have roamed
you can have roamed
he can have roamed
we can have roamed
you can have roamed
they can have roamed	I can have been roaming
you can have been roaming
he can have been roaming
we can have been roaming
you can have been roaming
they can have been roaming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot roam
you cannot roam
he cannot roam
we cannot roam
you cannot roam
they cannot roam 	I cannot be roaming
you cannot be roaming
he cannot be roaming
we cannot be roaming
you cannot be roaming
they cannot be roaming	I cannot have roamed
you cannot have roamed
he cannot have roamed
we cannot have roamed
you cannot have roamed
they cannot have roamed	I cannot have been roaming
you cannot have been roaming
he cannot have been roaming
we cannot have been roaming
you cannot have been roaming
they cannot have been roaming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I roam?
can you roam?
can he roam?
can we roam?
can you roam?
can they roam? 	can I be roaming?
can you be roaming?
can he be roaming?
can we be roaming?
can you be roaming?
can they be roaming? 	can I have roamed?
can you have roamed?
can he have roamed?
can we have roamed?
can you have roamed?
can they have roamed? 	can I have been roaming?
can you have been roaming?
can he have been roaming?
can we have been roaming?
can you have been roaming?
can they have been roaming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not roam?
can you not roam?
can he not roam?
can we not roam?
can you not roam?
can they not roam? 	can I not be roaming?
can you not be roaming?
can he not be roaming?
can we not be roaming?
can you not be roaming?
can they not be roaming? 	can I not have roamed?
can you not have roamed?
can he not have roamed?
can we not have roamed?
can you not have roamed?
can they not have roamed? 	can I not have been roaming?
can you not have been roaming?
can he not have been roaming?
can we not have been roaming?
can you not have been roaming?
can they not have been roaming?