Conjugación del verbo inglés
MUST SLACKEN

Verbo regular: slacken - slackened - slackened

Afirmación

Forma simple	Forma con V-ing
I must slacken you must slacken he must slacken we must slacken you must slacken they must slacken	I must be slackening you must be slackening he must be slackening we must be slackening you must be slackening they must be slackening
Perfecto	Perfecto con V-ing
I must have slackened you must have slackened he must have slackened we must have slackened you must have slackened they must have slackened	I must have been slackening you must have been slackening he must have been slackening we must have been slackening you must have been slackening they must have been slackening

Negación

Forma simple	Forma con V-ing
I mustn't slacken you mustn't slacken he mustn't slacken we mustn't slacken you mustn't slacken they mustn't slacken	I mustn't be slackening you mustn't be slackening he mustn't be slackening we mustn't be slackening you mustn't be slackening they mustn't be slackening
Perfecto	Perfecto con V-ing
I mustn't have slackened you mustn't have slackened he mustn't have slackened we mustn't have slackened you mustn't have slackened they mustn't have slackened	I mustn't have been slackening you mustn't have been slackening he mustn't have been slackening we mustn't have been slackening you mustn't have been slackening they mustn't have been slackening

Forma interrogativa

Forma simple	Forma con V-ing
must I slacken? must you slacken? must he slacken? must we slacken? must you slacken? must they slacken?	must I be slackening? must you be slackening? must he be slackening? must we be slackening? must you be slackening? must they be slackening?
Perfecto	Perfecto con V-ing
must I have slackened? must you have slackened? must he have slackened? must we have slackened? must you have slackened? must they have slackened?	must I have been slackening? must you have been slackening? must he have been slackening? must we have been slackening? must you have been slackening? must they have been slackening?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I slacken? mustn't you slacken? mustn't he slacken? mustn't we slacken? mustn't you slacken? mustn't they slacken?	mustn't I be slackening? mustn't you be slackening? mustn't he be slackening? mustn't we be slackening? mustn't you be slackening? mustn't they be slackening?
Perfecto	Perfecto con V-ing
mustn't I have slackened? mustn't you have slackened? mustn't he have slackened? mustn't we have slackened? mustn't you have slackened? mustn't they have slackened?	mustn't I have been slackening? mustn't you have been slackening? mustn't he have been slackening? mustn't we have been slackening? mustn't you have been slackening? mustn't they have been slackening?