English verb conjugation
MUST RING-FENCE

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

Affirmation

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

Negation

Simple form	V-ing form
I mustn't ring-fence you mustn't ring-fence he mustn't ring-fence we mustn't ring-fence you mustn't ring-fence they mustn't ring-fence	I mustn't be ring-fencing you mustn't be ring-fencing he mustn't be ring-fencing we mustn't be ring-fencing you mustn't be ring-fencing they mustn't be ring-fencing
Perfect	V-ing perfect
I mustn't have ring-fenced you mustn't have ring-fenced he mustn't have ring-fenced we mustn't have ring-fenced you mustn't have ring-fenced they mustn't have ring-fenced	I mustn't have been ring-fencing you mustn't have been ring-fencing he mustn't have been ring-fencing we mustn't have been ring-fencing you mustn't have been ring-fencing they mustn't have been ring-fencing

Interrogative form

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

Interro-negative form

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