English verb conjugation
MUST TELEGRAPH

Regular verb: telegraph - telegraphed - telegraphed

Affirmation

Simple form	V-ing form
I must telegraph you must telegraph he must telegraph we must telegraph you must telegraph they must telegraph	I must be telegraphing you must be telegraphing he must be telegraphing we must be telegraphing you must be telegraphing they must be telegraphing
Perfect	V-ing perfect
I must have telegraphed you must have telegraphed he must have telegraphed we must have telegraphed you must have telegraphed they must have telegraphed	I must have been telegraphing you must have been telegraphing he must have been telegraphing we must have been telegraphing you must have been telegraphing they must have been telegraphing

Negation

Simple form	V-ing form
I mustn't telegraph you mustn't telegraph he mustn't telegraph we mustn't telegraph you mustn't telegraph they mustn't telegraph	I mustn't be telegraphing you mustn't be telegraphing he mustn't be telegraphing we mustn't be telegraphing you mustn't be telegraphing they mustn't be telegraphing
Perfect	V-ing perfect
I mustn't have telegraphed you mustn't have telegraphed he mustn't have telegraphed we mustn't have telegraphed you mustn't have telegraphed they mustn't have telegraphed	I mustn't have been telegraphing you mustn't have been telegraphing he mustn't have been telegraphing we mustn't have been telegraphing you mustn't have been telegraphing they mustn't have been telegraphing

Interrogative form

Simple form	V-ing form
must I telegraph? must you telegraph? must he telegraph? must we telegraph? must you telegraph? must they telegraph?	must I be telegraphing? must you be telegraphing? must he be telegraphing? must we be telegraphing? must you be telegraphing? must they be telegraphing?
Perfect	V-ing perfect
must I have telegraphed? must you have telegraphed? must he have telegraphed? must we have telegraphed? must you have telegraphed? must they have telegraphed?	must I have been telegraphing? must you have been telegraphing? must he have been telegraphing? must we have been telegraphing? must you have been telegraphing? must they have been telegraphing?

Interro-negative form

Simple form	V-ing form
mustn't I telegraph? mustn't you telegraph? mustn't he telegraph? mustn't we telegraph? mustn't you telegraph? mustn't they telegraph?	mustn't I be telegraphing? mustn't you be telegraphing? mustn't he be telegraphing? mustn't we be telegraphing? mustn't you be telegraphing? mustn't they be telegraphing?
Perfect	V-ing perfect
mustn't I have telegraphed? mustn't you have telegraphed? mustn't he have telegraphed? mustn't we have telegraphed? mustn't you have telegraphed? mustn't they have telegraphed?	mustn't I have been telegraphing? mustn't you have been telegraphing? mustn't he have been telegraphing? mustn't we have been telegraphing? mustn't you have been telegraphing? mustn't they have been telegraphing?