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 must not telegraph you must not telegraph he must not telegraph we must not telegraph you must not telegraph they must not telegraph	I must not be telegraphing you must not be telegraphing he must not be telegraphing we must not be telegraphing you must not be telegraphing they must not be telegraphing
Perfect	V-ing perfect
I must not have telegraphed you must not have telegraphed he must not have telegraphed we must not have telegraphed you must not have telegraphed they must not have telegraphed	I must not have been telegraphing you must not have been telegraphing he must not have been telegraphing we must not have been telegraphing you must not have been telegraphing they must not 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
must I not telegraph? must you not telegraph? must he not telegraph? must we not telegraph? must you not telegraph? must they not telegraph?	must I not be telegraphing? must you not be telegraphing? must he not be telegraphing? must we not be telegraphing? must you not be telegraphing? must they not be telegraphing?
Perfect	V-ing perfect
must I not have telegraphed? must you not have telegraphed? must he not have telegraphed? must we not have telegraphed? must you not have telegraphed? must they not have telegraphed?	must I not have been telegraphing? must you not have been telegraphing? must he not have been telegraphing? must we not have been telegraphing? must you not have been telegraphing? must they not have been telegraphing?