English verb conjugation
COULD QUEUE

Regular verb: queue - queued - queued

Affirmation

Simple form	V-ing form
I could queue you could queue he could queue we could queue you could queue they could queue	I could be queuing you could be queuing he could be queuing we could be queuing you could be queuing they could be queuing
Perfect	V-ing perfect
I could have queued you could have queued he could have queued we could have queued you could have queued they could have queued	I could have been queuing you could have been queuing he could have been queuing we could have been queuing you could have been queuing they could have been queuing

Negation

Simple form	V-ing form
I could not queue you could not queue he could not queue we could not queue you could not queue they could not queue	I could not be queuing you could not be queuing he could not be queuing we could not be queuing you could not be queuing they could not be queuing
Perfect	V-ing perfect
I could not have queued you could not have queued he could not have queued we could not have queued you could not have queued they could not have queued	I could not have been queuing you could not have been queuing he could not have been queuing we could not have been queuing you could not have been queuing they could not have been queuing

Interrogative form

Simple form	V-ing form
could I queue? could you queue? could he queue? could we queue? could you queue? could they queue?	could I be queuing? could you be queuing? could he be queuing? could we be queuing? could you be queuing? could they be queuing?
Perfect	V-ing perfect
could I have queued? could you have queued? could he have queued? could we have queued? could you have queued? could they have queued?	could I have been queuing? could you have been queuing? could he have been queuing? could we have been queuing? could you have been queuing? could they have been queuing?

Interro-negative form

Simple form	V-ing form
could I not queue? could you not queue? could he not queue? could we not queue? could you not queue? could they not queue?	could I not be queuing? could you not be queuing? could he not be queuing? could we not be queuing? could you not be queuing? could they not be queuing?
Perfect	V-ing perfect
could I not have queued? could you not have queued? could he not have queued? could we not have queued? could you not have queued? could they not have queued?	could I not have been queuing? could you not have been queuing? could he not have been queuing? could we not have been queuing? could you not have been queuing? could they not have been queuing?