English verb conjugation
MUST LIGHTNING

Regular verb: lightning - lightninged - lightninged

Affirmation

Simple form	V-ing form
I must lightning you must lightning he must lightning we must lightning you must lightning they must lightning	I must be lightninging you must be lightninging he must be lightninging we must be lightninging you must be lightninging they must be lightninging
Perfect	V-ing perfect
I must have lightninged you must have lightninged he must have lightninged we must have lightninged you must have lightninged they must have lightninged	I must have been lightninging you must have been lightninging he must have been lightninging we must have been lightninging you must have been lightninging they must have been lightninging

Negation

Simple form	V-ing form
I mustn't lightning you mustn't lightning he mustn't lightning we mustn't lightning you mustn't lightning they mustn't lightning	I mustn't be lightninging you mustn't be lightninging he mustn't be lightninging we mustn't be lightninging you mustn't be lightninging they mustn't be lightninging
Perfect	V-ing perfect
I mustn't have lightninged you mustn't have lightninged he mustn't have lightninged we mustn't have lightninged you mustn't have lightninged they mustn't have lightninged	I mustn't have been lightninging you mustn't have been lightninging he mustn't have been lightninging we mustn't have been lightninging you mustn't have been lightninging they mustn't have been lightninging

Interrogative form

Simple form	V-ing form
must I lightning? must you lightning? must he lightning? must we lightning? must you lightning? must they lightning?	must I be lightninging? must you be lightninging? must he be lightninging? must we be lightninging? must you be lightninging? must they be lightninging?
Perfect	V-ing perfect
must I have lightninged? must you have lightninged? must he have lightninged? must we have lightninged? must you have lightninged? must they have lightninged?	must I have been lightninging? must you have been lightninging? must he have been lightninging? must we have been lightninging? must you have been lightninging? must they have been lightninging?

Interro-negative form

Simple form	V-ing form
mustn't I lightning? mustn't you lightning? mustn't he lightning? mustn't we lightning? mustn't you lightning? mustn't they lightning?	mustn't I be lightninging? mustn't you be lightninging? mustn't he be lightninging? mustn't we be lightninging? mustn't you be lightninging? mustn't they be lightninging?
Perfect	V-ing perfect
mustn't I have lightninged? mustn't you have lightninged? mustn't he have lightninged? mustn't we have lightninged? mustn't you have lightninged? mustn't they have lightninged?	mustn't I have been lightninging? mustn't you have been lightninging? mustn't he have been lightninging? mustn't we have been lightninging? mustn't you have been lightninging? mustn't they have been lightninging?