English verb conjugation
MUST TWIG

Regular verb: twig - twigged - twigged

Affirmation

Simple form	V-ing form
I must twig you must twig he must twig we must twig you must twig they must twig	I must be twigging you must be twigging he must be twigging we must be twigging you must be twigging they must be twigging
Perfect	V-ing perfect
I must have twigged you must have twigged he must have twigged we must have twigged you must have twigged they must have twigged	I must have been twigging you must have been twigging he must have been twigging we must have been twigging you must have been twigging they must have been twigging

Negation

Simple form	V-ing form
I mustn't twig you mustn't twig he mustn't twig we mustn't twig you mustn't twig they mustn't twig	I mustn't be twigging you mustn't be twigging he mustn't be twigging we mustn't be twigging you mustn't be twigging they mustn't be twigging
Perfect	V-ing perfect
I mustn't have twigged you mustn't have twigged he mustn't have twigged we mustn't have twigged you mustn't have twigged they mustn't have twigged	I mustn't have been twigging you mustn't have been twigging he mustn't have been twigging we mustn't have been twigging you mustn't have been twigging they mustn't have been twigging

Interrogative form

Simple form	V-ing form
must I twig? must you twig? must he twig? must we twig? must you twig? must they twig?	must I be twigging? must you be twigging? must he be twigging? must we be twigging? must you be twigging? must they be twigging?
Perfect	V-ing perfect
must I have twigged? must you have twigged? must he have twigged? must we have twigged? must you have twigged? must they have twigged?	must I have been twigging? must you have been twigging? must he have been twigging? must we have been twigging? must you have been twigging? must they have been twigging?

Interro-negative form

Simple form	V-ing form
mustn't I twig? mustn't you twig? mustn't he twig? mustn't we twig? mustn't you twig? mustn't they twig?	mustn't I be twigging? mustn't you be twigging? mustn't he be twigging? mustn't we be twigging? mustn't you be twigging? mustn't they be twigging?
Perfect	V-ing perfect
mustn't I have twigged? mustn't you have twigged? mustn't he have twigged? mustn't we have twigged? mustn't you have twigged? mustn't they have twigged?	mustn't I have been twigging? mustn't you have been twigging? mustn't he have been twigging? mustn't we have been twigging? mustn't you have been twigging? mustn't they have been twigging?