English verb conjugation
MUST LEMMATISE

Regular verb: lemmatise - lemmatised - lemmatised

Affirmation

Simple form	V-ing form
I must lemmatise you must lemmatise she must lemmatise we must lemmatise you must lemmatise they must lemmatise	I must be lemmatising you must be lemmatising she 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 she 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 she 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 must not lemmatise you must not lemmatise she must not lemmatise we must not lemmatise you must not lemmatise they must not lemmatise	I must not be lemmatising you must not be lemmatising she must not be lemmatising we must not be lemmatising you must not be lemmatising they must not be lemmatising
Perfect	V-ing perfect
I must not have lemmatised you must not have lemmatised she must not have lemmatised we must not have lemmatised you must not have lemmatised they must not have lemmatised	I must not have been lemmatising you must not have been lemmatising she must not have been lemmatising we must not have been lemmatising you must not have been lemmatising they must not have been lemmatising

Interrogative form

Simple form	V-ing form
must I lemmatise? must you lemmatise? must she lemmatise? must we lemmatise? must you lemmatise? must they lemmatise?	must I be lemmatising? must you be lemmatising? must she 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 she 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 she 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
must I not lemmatise? must you not lemmatise? must she not lemmatise? must we not lemmatise? must you not lemmatise? must they not lemmatise?	must I not be lemmatising? must you not be lemmatising? must she not be lemmatising? must we not be lemmatising? must you not be lemmatising? must they not be lemmatising?
Perfect	V-ing perfect
must I not have lemmatised? must you not have lemmatised? must she not have lemmatised? must we not have lemmatised? must you not have lemmatised? must they not have lemmatised?	must I not have been lemmatising? must you not have been lemmatising? must she not have been lemmatising? must we not have been lemmatising? must you not have been lemmatising? must they not have been lemmatising?