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 must not keel you must not keel he must not keel we must not keel you must not keel they must not keel	I must not be keeling you must not be keeling he must not be keeling we must not be keeling you must not be keeling they must not be keeling
Perfect	V-ing perfect
I must not have keeled you must not have keeled he must not have keeled we must not have keeled you must not have keeled they must not have keeled	I must not have been keeling you must not have been keeling he must not have been keeling we must not have been keeling you must not have been keeling they must not 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
must I not keel? must you not keel? must he not keel? must we not keel? must you not keel? must they not keel?	must I not be keeling? must you not be keeling? must he not be keeling? must we not be keeling? must you not be keeling? must they not be keeling?
Perfect	V-ing perfect
must I not have keeled? must you not have keeled? must he not have keeled? must we not have keeled? must you not have keeled? must they not have keeled?	must I not have been keeling? must you not have been keeling? must he not have been keeling? must we not have been keeling? must you not have been keeling? must they not have been keeling?