English verb conjugation
MUST KEEL

Regular verb: keel - keeled - keeled

Affirmation

Simple form	V-ing form
I must keel you must keel he must keel we must keel you must keel they must keel	I must be keeling you must be keeling he must be keeling we must be keeling you must be keeling they must be keeling
Perfect	V-ing perfect
I must have keeled you must have keeled he must have keeled we must have keeled you must have keeled they must have keeled	I must have been keeling you must have been keeling he must have been keeling we must have been keeling you must have been keeling they must have been keeling

Negation

Simple form	V-ing form
I mustn't keel you mustn't keel he mustn't keel we mustn't keel you mustn't keel they mustn't keel	I mustn't be keeling you mustn't be keeling he mustn't be keeling we mustn't be keeling you mustn't be keeling they mustn't be keeling
Perfect	V-ing perfect
I mustn't have keeled you mustn't have keeled he mustn't have keeled we mustn't have keeled you mustn't have keeled they mustn't have keeled	I mustn't have been keeling you mustn't have been keeling he mustn't have been keeling we mustn't have been keeling you mustn't have been keeling they mustn't have been keeling

Interrogative form

Simple form	V-ing form
must I keel? must you keel? must he keel? must we keel? must you keel? must they keel?	must I be keeling? must you be keeling? must he be keeling? must we be keeling? must you be keeling? must they be keeling?
Perfect	V-ing perfect
must I have keeled? must you have keeled? must he have keeled? must we have keeled? must you have keeled? must they have keeled?	must I have been keeling? must you have been keeling? must he have been keeling? must we have been keeling? must you have been keeling? must they have been keeling?

Interro-negative form

Simple form	V-ing form
mustn't I keel? mustn't you keel? mustn't he keel? mustn't we keel? mustn't you keel? mustn't they keel?	mustn't I be keeling? mustn't you be keeling? mustn't he be keeling? mustn't we be keeling? mustn't you be keeling? mustn't they be keeling?
Perfect	V-ing perfect
mustn't I have keeled? mustn't you have keeled? mustn't he have keeled? mustn't we have keeled? mustn't you have keeled? mustn't they have keeled?	mustn't I have been keeling? mustn't you have been keeling? mustn't he have been keeling? mustn't we have been keeling? mustn't you have been keeling? mustn't they have been keeling?