English verb conjugation
MUST GATHER

Regular verb: gather - gathered - gathered

Affirmation

Simple form	V-ing form
I must gather you must gather she must gather we must gather you must gather they must gather	I must be gathering you must be gathering she must be gathering we must be gathering you must be gathering they must be gathering
Perfect	V-ing perfect
I must have gathered you must have gathered she must have gathered we must have gathered you must have gathered they must have gathered	I must have been gathering you must have been gathering she must have been gathering we must have been gathering you must have been gathering they must have been gathering

Negation

Simple form	V-ing form
I mustn't gather you mustn't gather she mustn't gather we mustn't gather you mustn't gather they mustn't gather	I mustn't be gathering you mustn't be gathering she mustn't be gathering we mustn't be gathering you mustn't be gathering they mustn't be gathering
Perfect	V-ing perfect
I mustn't have gathered you mustn't have gathered she mustn't have gathered we mustn't have gathered you mustn't have gathered they mustn't have gathered	I mustn't have been gathering you mustn't have been gathering she mustn't have been gathering we mustn't have been gathering you mustn't have been gathering they mustn't have been gathering

Interrogative form

Simple form	V-ing form
must I gather? must you gather? must she gather? must we gather? must you gather? must they gather?	must I be gathering? must you be gathering? must she be gathering? must we be gathering? must you be gathering? must they be gathering?
Perfect	V-ing perfect
must I have gathered? must you have gathered? must she have gathered? must we have gathered? must you have gathered? must they have gathered?	must I have been gathering? must you have been gathering? must she have been gathering? must we have been gathering? must you have been gathering? must they have been gathering?

Interro-negative form

Simple form	V-ing form
mustn't I gather? mustn't you gather? mustn't she gather? mustn't we gather? mustn't you gather? mustn't they gather?	mustn't I be gathering? mustn't you be gathering? mustn't she be gathering? mustn't we be gathering? mustn't you be gathering? mustn't they be gathering?
Perfect	V-ing perfect
mustn't I have gathered? mustn't you have gathered? mustn't she have gathered? mustn't we have gathered? mustn't you have gathered? mustn't they have gathered?	mustn't I have been gathering? mustn't you have been gathering? mustn't she have been gathering? mustn't we have been gathering? mustn't you have been gathering? mustn't they have been gathering?