English verb conjugation
MUST ULULATE

Regular verb: ululate - ululated - ululated

Affirmation

Simple form	V-ing form
I must ululate you must ululate he must ululate we must ululate you must ululate they must ululate	I must be ululating you must be ululating he must be ululating we must be ululating you must be ululating they must be ululating
Perfect	V-ing perfect
I must have ululated you must have ululated he must have ululated we must have ululated you must have ululated they must have ululated	I must have been ululating you must have been ululating he must have been ululating we must have been ululating you must have been ululating they must have been ululating

Negation

Simple form	V-ing form
I must not ululate you must not ululate he must not ululate we must not ululate you must not ululate they must not ululate	I must not be ululating you must not be ululating he must not be ululating we must not be ululating you must not be ululating they must not be ululating
Perfect	V-ing perfect
I must not have ululated you must not have ululated he must not have ululated we must not have ululated you must not have ululated they must not have ululated	I must not have been ululating you must not have been ululating he must not have been ululating we must not have been ululating you must not have been ululating they must not have been ululating

Interrogative form

Simple form	V-ing form
must I ululate? must you ululate? must he ululate? must we ululate? must you ululate? must they ululate?	must I be ululating? must you be ululating? must he be ululating? must we be ululating? must you be ululating? must they be ululating?
Perfect	V-ing perfect
must I have ululated? must you have ululated? must he have ululated? must we have ululated? must you have ululated? must they have ululated?	must I have been ululating? must you have been ululating? must he have been ululating? must we have been ululating? must you have been ululating? must they have been ululating?

Interro-negative form

Simple form	V-ing form
must I not ululate? must you not ululate? must he not ululate? must we not ululate? must you not ululate? must they not ululate?	must I not be ululating? must you not be ululating? must he not be ululating? must we not be ululating? must you not be ululating? must they not be ululating?
Perfect	V-ing perfect
must I not have ululated? must you not have ululated? must he not have ululated? must we not have ululated? must you not have ululated? must they not have ululated?	must I not have been ululating? must you not have been ululating? must he not have been ululating? must we not have been ululating? must you not have been ululating? must they not have been ululating?