could roam
Regular verb: roam - roamed- roamed

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't roam
you couldn't roam
she couldn't roam
we couldn't roam
you couldn't roam
they couldn't roam 	I couldn't be roaming
you couldn't be roaming
she couldn't be roaming
we couldn't be roaming
you couldn't be roaming
they couldn't be roaming	I couldn't have roamed
you couldn't have roamed
she couldn't have roamed
we couldn't have roamed
you couldn't have roamed
they couldn't have roamed	I couldn't have been roaming
you couldn't have been roaming
she couldn't have been roaming
we couldn't have been roaming
you couldn't have been roaming
they couldn't have been roaming	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I roam?
couldn't you roam?
couldn't she roam?
couldn't we roam?
couldn't you roam?
couldn't they roam? 	couldn't I be roaming?
couldn't you be roaming?
couldn't she be roaming?
couldn't we be roaming?
couldn't you be roaming?
couldn't they be roaming? 	couldn't I have roamed?
couldn't you have roamed?
couldn't she have roamed?
couldn't we have roamed?
couldn't you have roamed?
couldn't they have roamed? 	couldn't I have been roaming?
couldn't you have been roaming?
couldn't she have been roaming?
couldn't we have been roaming?
couldn't you have been roaming?
couldn't they have been roaming?