Atención, este verbo puede no existir, se da como ejemplo la conjugación.
Afirmación
Forma simple
I must laughter you must laughter he must laughter we must laughter you must laughter they must laughter
Forma con V-ing
I must be laughtering you must be laughtering he must be laughtering we must be laughtering you must be laughtering they must be laughtering
Perfecto
I must have laughtered you must have laughtered he must have laughtered we must have laughtered you must have laughtered they must have laughtered
Perfecto con V-ing
I must have been laughtering you must have been laughtering he must have been laughtering we must have been laughtering you must have been laughtering they must have been laughtering
Negación
Forma simple
I must not laughter you must not laughter he must not laughter we must not laughter you must not laughter they must not laughter
Forma con V-ing
I must not be laughtering you must not be laughtering he must not be laughtering we must not be laughtering you must not be laughtering they must not be laughtering
Perfecto
I must not have laughtered you must not have laughtered he must not have laughtered we must not have laughtered you must not have laughtered they must not have laughtered
Perfecto con V-ing
I must not have been laughtering you must not have been laughtering he must not have been laughtering we must not have been laughtering you must not have been laughtering they must not have been laughtering
Forma interrogativa
Forma simple
must I laughter? must you laughter? must he laughter? must we laughter? must you laughter? must they laughter?
Forma con V-ing
must I be laughtering? must you be laughtering? must he be laughtering? must we be laughtering? must you be laughtering? must they be laughtering?
Perfecto
must I have laughtered? must you have laughtered? must he have laughtered? must we have laughtered? must you have laughtered? must they have laughtered?
Perfecto con V-ing
must I have been laughtering? must you have been laughtering? must he have been laughtering? must we have been laughtering? must you have been laughtering? must they have been laughtering?
Forma interro-negativa
Forma simple
must I not laughter? must you not laughter? must he not laughter? must we not laughter? must you not laughter? must they not laughter?
Forma con V-ing
must I not be laughtering? must you not be laughtering? must he not be laughtering? must we not be laughtering? must you not be laughtering? must they not be laughtering?
Perfecto
must I not have laughtered? must you not have laughtered? must he not have laughtered? must we not have laughtered? must you not have laughtered? must they not have laughtered?
Perfecto con V-ing
must I not have been laughtering? must you not have been laughtering? must he not have been laughtering? must we not have been laughtering? must you not have been laughtering? must they not have been laughtering?