Regular verb: mark mark - mark marked - mark marked
Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must mark mark you must mark mark he must mark mark we must mark mark you must mark mark they must mark mark
V-ing form
I must be mark marking you must be mark marking he must be mark marking we must be mark marking you must be mark marking they must be mark marking
Perfect
I must have mark marked you must have mark marked he must have mark marked we must have mark marked you must have mark marked they must have mark marked
V-ing perfect
I must have been mark marking you must have been mark marking he must have been mark marking we must have been mark marking you must have been mark marking they must have been mark marking
Negation
Simple form
I mustn't mark mark you mustn't mark mark he mustn't mark mark we mustn't mark mark you mustn't mark mark they mustn't mark mark
V-ing form
I mustn't be mark marking you mustn't be mark marking he mustn't be mark marking we mustn't be mark marking you mustn't be mark marking they mustn't be mark marking
Perfect
I mustn't have mark marked you mustn't have mark marked he mustn't have mark marked we mustn't have mark marked you mustn't have mark marked they mustn't have mark marked
V-ing perfect
I mustn't have been mark marking you mustn't have been mark marking he mustn't have been mark marking we mustn't have been mark marking you mustn't have been mark marking they mustn't have been mark marking
Interrogative form
Simple form
must I mark mark? must you mark mark? must he mark mark? must we mark mark? must you mark mark? must they mark mark?
V-ing form
must I be mark marking? must you be mark marking? must he be mark marking? must we be mark marking? must you be mark marking? must they be mark marking?
Perfect
must I have mark marked? must you have mark marked? must he have mark marked? must we have mark marked? must you have mark marked? must they have mark marked?
V-ing perfect
must I have been mark marking? must you have been mark marking? must he have been mark marking? must we have been mark marking? must you have been mark marking? must they have been mark marking?
Interro-negative form
Simple form
mustn't I mark mark? mustn't you mark mark? mustn't he mark mark? mustn't we mark mark? mustn't you mark mark? mustn't they mark mark?
V-ing form
mustn't I be mark marking? mustn't you be mark marking? mustn't he be mark marking? mustn't we be mark marking? mustn't you be mark marking? mustn't they be mark marking?
Perfect
mustn't I have mark marked? mustn't you have mark marked? mustn't he have mark marked? mustn't we have mark marked? mustn't you have mark marked? mustn't they have mark marked?
V-ing perfect
mustn't I have been mark marking? mustn't you have been mark marking? mustn't he have been mark marking? mustn't we have been mark marking? mustn't you have been mark marking? mustn't they have been mark marking?