English verb conjugation
CAN ROAM

Regular verb: roam - roamed - roamed

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I can't roam you can't roam he can't roam we can't roam you can't roam they can't roam	I can't be roaming you can't be roaming he can't be roaming we can't be roaming you can't be roaming they can't be roaming
Perfect	V-ing perfect
I can't have roamed you can't have roamed he can't have roamed we can't have roamed you can't have roamed they can't have roamed	I can't have been roaming you can't have been roaming he can't have been roaming we can't have been roaming you can't have been roaming they can't have been roaming

Interrogative form

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