English verb conjugation
COULD RING-FENCE

Regular verb: ring-fence - ring-fenced - ring-fenced

Affirmation

Simple form	V-ing form
I could ring-fence you could ring-fence he could ring-fence we could ring-fence you could ring-fence they could ring-fence	I could be ring-fencing you could be ring-fencing he could be ring-fencing we could be ring-fencing you could be ring-fencing they could be ring-fencing
Perfect	V-ing perfect
I could have ring-fenced you could have ring-fenced he could have ring-fenced we could have ring-fenced you could have ring-fenced they could have ring-fenced	I could have been ring-fencing you could have been ring-fencing he could have been ring-fencing we could have been ring-fencing you could have been ring-fencing they could have been ring-fencing

Negation

Simple form	V-ing form
I could not ring-fence you could not ring-fence he could not ring-fence we could not ring-fence you could not ring-fence they could not ring-fence	I could not be ring-fencing you could not be ring-fencing he could not be ring-fencing we could not be ring-fencing you could not be ring-fencing they could not be ring-fencing
Perfect	V-ing perfect
I could not have ring-fenced you could not have ring-fenced he could not have ring-fenced we could not have ring-fenced you could not have ring-fenced they could not have ring-fenced	I could not have been ring-fencing you could not have been ring-fencing he could not have been ring-fencing we could not have been ring-fencing you could not have been ring-fencing they could not have been ring-fencing

Interrogative form

Simple form	V-ing form
could I ring-fence? could you ring-fence? could he ring-fence? could we ring-fence? could you ring-fence? could they ring-fence?	could I be ring-fencing? could you be ring-fencing? could he be ring-fencing? could we be ring-fencing? could you be ring-fencing? could they be ring-fencing?
Perfect	V-ing perfect
could I have ring-fenced? could you have ring-fenced? could he have ring-fenced? could we have ring-fenced? could you have ring-fenced? could they have ring-fenced?	could I have been ring-fencing? could you have been ring-fencing? could he have been ring-fencing? could we have been ring-fencing? could you have been ring-fencing? could they have been ring-fencing?

Interro-negative form

Simple form	V-ing form
could I not ring-fence? could you not ring-fence? could he not ring-fence? could we not ring-fence? could you not ring-fence? could they not ring-fence?	could I not be ring-fencing? could you not be ring-fencing? could he not be ring-fencing? could we not be ring-fencing? could you not be ring-fencing? could they not be ring-fencing?
Perfect	V-ing perfect
could I not have ring-fenced? could you not have ring-fenced? could he not have ring-fenced? could we not have ring-fenced? could you not have ring-fenced? could they not have ring-fenced?	could I not have been ring-fencing? could you not have been ring-fencing? could he not have been ring-fencing? could we not have been ring-fencing? could you not have been ring-fencing? could they not have been ring-fencing?