English verb conjugation
MUST LEMMATISE

Regular verb: lemmatise - lemmatised - lemmatised

Affirmation

Simple form	V-ing form
I must lemmatise you must lemmatise he must lemmatise we must lemmatise you must lemmatise they must lemmatise	I must be lemmatising you must be lemmatising he must be lemmatising we must be lemmatising you must be lemmatising they must be lemmatising
Perfect	V-ing perfect
I must have lemmatised you must have lemmatised he must have lemmatised we must have lemmatised you must have lemmatised they must have lemmatised	I must have been lemmatising you must have been lemmatising he must have been lemmatising we must have been lemmatising you must have been lemmatising they must have been lemmatising

Negation

Simple form	V-ing form
I mustn't lemmatise you mustn't lemmatise he mustn't lemmatise we mustn't lemmatise you mustn't lemmatise they mustn't lemmatise	I mustn't be lemmatising you mustn't be lemmatising he mustn't be lemmatising we mustn't be lemmatising you mustn't be lemmatising they mustn't be lemmatising
Perfect	V-ing perfect
I mustn't have lemmatised you mustn't have lemmatised he mustn't have lemmatised we mustn't have lemmatised you mustn't have lemmatised they mustn't have lemmatised	I mustn't have been lemmatising you mustn't have been lemmatising he mustn't have been lemmatising we mustn't have been lemmatising you mustn't have been lemmatising they mustn't have been lemmatising

Interrogative form

Simple form	V-ing form
must I lemmatise? must you lemmatise? must he lemmatise? must we lemmatise? must you lemmatise? must they lemmatise?	must I be lemmatising? must you be lemmatising? must he be lemmatising? must we be lemmatising? must you be lemmatising? must they be lemmatising?
Perfect	V-ing perfect
must I have lemmatised? must you have lemmatised? must he have lemmatised? must we have lemmatised? must you have lemmatised? must they have lemmatised?	must I have been lemmatising? must you have been lemmatising? must he have been lemmatising? must we have been lemmatising? must you have been lemmatising? must they have been lemmatising?

Interro-negative form

Simple form	V-ing form
mustn't I lemmatise? mustn't you lemmatise? mustn't he lemmatise? mustn't we lemmatise? mustn't you lemmatise? mustn't they lemmatise?	mustn't I be lemmatising? mustn't you be lemmatising? mustn't he be lemmatising? mustn't we be lemmatising? mustn't you be lemmatising? mustn't they be lemmatising?
Perfect	V-ing perfect
mustn't I have lemmatised? mustn't you have lemmatised? mustn't he have lemmatised? mustn't we have lemmatised? mustn't you have lemmatised? mustn't they have lemmatised?	mustn't I have been lemmatising? mustn't you have been lemmatising? mustn't he have been lemmatising? mustn't we have been lemmatising? mustn't you have been lemmatising? mustn't they have been lemmatising?