English verb conjugation
CAN ROADBLOCK

Regular verb: roadblock - roadblocked - roadblocked

Affirmation

Simple form	V-ing form
I can roadblock you can roadblock he can roadblock we can roadblock you can roadblock they can roadblock	I can be roadblocking you can be roadblocking he can be roadblocking we can be roadblocking you can be roadblocking they can be roadblocking
Perfect	V-ing perfect
I can have roadblocked you can have roadblocked he can have roadblocked we can have roadblocked you can have roadblocked they can have roadblocked	I can have been roadblocking you can have been roadblocking he can have been roadblocking we can have been roadblocking you can have been roadblocking they can have been roadblocking

Negation

Simple form	V-ing form
I cannot roadblock you cannot roadblock he cannot roadblock we cannot roadblock you cannot roadblock they cannot roadblock	I cannot be roadblocking you cannot be roadblocking he cannot be roadblocking we cannot be roadblocking you cannot be roadblocking they cannot be roadblocking
Perfect	V-ing perfect
I cannot have roadblocked you cannot have roadblocked he cannot have roadblocked we cannot have roadblocked you cannot have roadblocked they cannot have roadblocked	I cannot have been roadblocking you cannot have been roadblocking he cannot have been roadblocking we cannot have been roadblocking you cannot have been roadblocking they cannot have been roadblocking

Interrogative form

Simple form	V-ing form
can I roadblock? can you roadblock? can he roadblock? can we roadblock? can you roadblock? can they roadblock?	can I be roadblocking? can you be roadblocking? can he be roadblocking? can we be roadblocking? can you be roadblocking? can they be roadblocking?
Perfect	V-ing perfect
can I have roadblocked? can you have roadblocked? can he have roadblocked? can we have roadblocked? can you have roadblocked? can they have roadblocked?	can I have been roadblocking? can you have been roadblocking? can he have been roadblocking? can we have been roadblocking? can you have been roadblocking? can they have been roadblocking?

Interro-negative form

Simple form	V-ing form
can I not roadblock? can you not roadblock? can he not roadblock? can we not roadblock? can you not roadblock? can they not roadblock?	can I not be roadblocking? can you not be roadblocking? can he not be roadblocking? can we not be roadblocking? can you not be roadblocking? can they not be roadblocking?
Perfect	V-ing perfect
can I not have roadblocked? can you not have roadblocked? can he not have roadblocked? can we not have roadblocked? can you not have roadblocked? can they not have roadblocked?	can I not have been roadblocking? can you not have been roadblocking? can he not have been roadblocking? can we not have been roadblocking? can you not have been roadblocking? can they not have been roadblocking?