English verb conjugation
MUST TWINE

Regular verb: twine - twined - twined

Affirmation

Simple form	V-ing form
I must twine you must twine he must twine we must twine you must twine they must twine	I must be twining you must be twining he must be twining we must be twining you must be twining they must be twining
Perfect	V-ing perfect
I must have twined you must have twined he must have twined we must have twined you must have twined they must have twined	I must have been twining you must have been twining he must have been twining we must have been twining you must have been twining they must have been twining

Negation

Simple form	V-ing form
I mustn't twine you mustn't twine he mustn't twine we mustn't twine you mustn't twine they mustn't twine	I mustn't be twining you mustn't be twining he mustn't be twining we mustn't be twining you mustn't be twining they mustn't be twining
Perfect	V-ing perfect
I mustn't have twined you mustn't have twined he mustn't have twined we mustn't have twined you mustn't have twined they mustn't have twined	I mustn't have been twining you mustn't have been twining he mustn't have been twining we mustn't have been twining you mustn't have been twining they mustn't have been twining

Interrogative form

Simple form	V-ing form
must I twine? must you twine? must he twine? must we twine? must you twine? must they twine?	must I be twining? must you be twining? must he be twining? must we be twining? must you be twining? must they be twining?
Perfect	V-ing perfect
must I have twined? must you have twined? must he have twined? must we have twined? must you have twined? must they have twined?	must I have been twining? must you have been twining? must he have been twining? must we have been twining? must you have been twining? must they have been twining?

Interro-negative form

Simple form	V-ing form
mustn't I twine? mustn't you twine? mustn't he twine? mustn't we twine? mustn't you twine? mustn't they twine?	mustn't I be twining? mustn't you be twining? mustn't he be twining? mustn't we be twining? mustn't you be twining? mustn't they be twining?
Perfect	V-ing perfect
mustn't I have twined? mustn't you have twined? mustn't he have twined? mustn't we have twined? mustn't you have twined? mustn't they have twined?	mustn't I have been twining? mustn't you have been twining? mustn't he have been twining? mustn't we have been twining? mustn't you have been twining? mustn't they have been twining?