English verb conjugation
MUST FINK

Regular verb: fink - finked - finked

Affirmation

Simple form	V-ing form
I must fink you must fink he must fink we must fink you must fink they must fink	I must be finking you must be finking he must be finking we must be finking you must be finking they must be finking
Perfect	V-ing perfect
I must have finked you must have finked he must have finked we must have finked you must have finked they must have finked	I must have been finking you must have been finking he must have been finking we must have been finking you must have been finking they must have been finking

Negation

Simple form	V-ing form
I mustn't fink you mustn't fink he mustn't fink we mustn't fink you mustn't fink they mustn't fink	I mustn't be finking you mustn't be finking he mustn't be finking we mustn't be finking you mustn't be finking they mustn't be finking
Perfect	V-ing perfect
I mustn't have finked you mustn't have finked he mustn't have finked we mustn't have finked you mustn't have finked they mustn't have finked	I mustn't have been finking you mustn't have been finking he mustn't have been finking we mustn't have been finking you mustn't have been finking they mustn't have been finking

Interrogative form

Simple form	V-ing form
must I fink? must you fink? must he fink? must we fink? must you fink? must they fink?	must I be finking? must you be finking? must he be finking? must we be finking? must you be finking? must they be finking?
Perfect	V-ing perfect
must I have finked? must you have finked? must he have finked? must we have finked? must you have finked? must they have finked?	must I have been finking? must you have been finking? must he have been finking? must we have been finking? must you have been finking? must they have been finking?

Interro-negative form

Simple form	V-ing form
mustn't I fink? mustn't you fink? mustn't he fink? mustn't we fink? mustn't you fink? mustn't they fink?	mustn't I be finking? mustn't you be finking? mustn't he be finking? mustn't we be finking? mustn't you be finking? mustn't they be finking?
Perfect	V-ing perfect
mustn't I have finked? mustn't you have finked? mustn't he have finked? mustn't we have finked? mustn't you have finked? mustn't they have finked?	mustn't I have been finking? mustn't you have been finking? mustn't he have been finking? mustn't we have been finking? mustn't you have been finking? mustn't they have been finking?