Conjugación del verbo inglés
MUST SPRING

Verbo irregular: spring - sprang, sprung - sprung

Afirmación

Forma simple	Forma con V-ing
I must spring you must spring he must spring we must spring you must spring they must spring	I must be springing you must be springing he must be springing we must be springing you must be springing they must be springing
Perfecto	Perfecto con V-ing
I must have sprung you must have sprung he must have sprung we must have sprung you must have sprung they must have sprung	I must have been springing you must have been springing he must have been springing we must have been springing you must have been springing they must have been springing

Negación

Forma simple	Forma con V-ing
I mustn't spring you mustn't spring he mustn't spring we mustn't spring you mustn't spring they mustn't spring	I mustn't be springing you mustn't be springing he mustn't be springing we mustn't be springing you mustn't be springing they mustn't be springing
Perfecto	Perfecto con V-ing
I mustn't have sprung you mustn't have sprung he mustn't have sprung we mustn't have sprung you mustn't have sprung they mustn't have sprung	I mustn't have been springing you mustn't have been springing he mustn't have been springing we mustn't have been springing you mustn't have been springing they mustn't have been springing

Forma interrogativa

Forma simple	Forma con V-ing
must I spring? must you spring? must he spring? must we spring? must you spring? must they spring?	must I be springing? must you be springing? must he be springing? must we be springing? must you be springing? must they be springing?
Perfecto	Perfecto con V-ing
must I have sprung? must you have sprung? must he have sprung? must we have sprung? must you have sprung? must they have sprung?	must I have been springing? must you have been springing? must he have been springing? must we have been springing? must you have been springing? must they have been springing?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I spring? mustn't you spring? mustn't he spring? mustn't we spring? mustn't you spring? mustn't they spring?	mustn't I be springing? mustn't you be springing? mustn't he be springing? mustn't we be springing? mustn't you be springing? mustn't they be springing?
Perfecto	Perfecto con V-ing
mustn't I have sprung? mustn't you have sprung? mustn't he have sprung? mustn't we have sprung? mustn't you have sprung? mustn't they have sprung?	mustn't I have been springing? mustn't you have been springing? mustn't he have been springing? mustn't we have been springing? mustn't you have been springing? mustn't they have been springing?