Conjugación del verbo inglés
MUST LAUGH

Verbo regular: laugh - laughed - laughed

Afirmación

Forma simple	Forma con V-ing
I must laugh you must laugh she must laugh we must laugh you must laugh they must laugh	I must be laughing you must be laughing she must be laughing we must be laughing you must be laughing they must be laughing
Perfecto	Perfecto con V-ing
I must have laughed you must have laughed she must have laughed we must have laughed you must have laughed they must have laughed	I must have been laughing you must have been laughing she must have been laughing we must have been laughing you must have been laughing they must have been laughing

Negación

Forma simple	Forma con V-ing
I must not laugh you must not laugh she must not laugh we must not laugh you must not laugh they must not laugh	I must not be laughing you must not be laughing she must not be laughing we must not be laughing you must not be laughing they must not be laughing
Perfecto	Perfecto con V-ing
I must not have laughed you must not have laughed she must not have laughed we must not have laughed you must not have laughed they must not have laughed	I must not have been laughing you must not have been laughing she must not have been laughing we must not have been laughing you must not have been laughing they must not have been laughing

Forma interrogativa

Forma simple	Forma con V-ing
must I laugh? must you laugh? must she laugh? must we laugh? must you laugh? must they laugh?	must I be laughing? must you be laughing? must she be laughing? must we be laughing? must you be laughing? must they be laughing?
Perfecto	Perfecto con V-ing
must I have laughed? must you have laughed? must she have laughed? must we have laughed? must you have laughed? must they have laughed?	must I have been laughing? must you have been laughing? must she have been laughing? must we have been laughing? must you have been laughing? must they have been laughing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not laugh? must you not laugh? must she not laugh? must we not laugh? must you not laugh? must they not laugh?	must I not be laughing? must you not be laughing? must she not be laughing? must we not be laughing? must you not be laughing? must they not be laughing?
Perfecto	Perfecto con V-ing
must I not have laughed? must you not have laughed? must she not have laughed? must we not have laughed? must you not have laughed? must they not have laughed?	must I not have been laughing? must you not have been laughing? must she not have been laughing? must we not have been laughing? must you not have been laughing? must they not have been laughing?