Conjugación del verbo inglés
MUST SHARPEN

Verbo regular: sharpen - sharpened - sharpened

Afirmación

Forma simple	Forma con V-ing
I must sharpen you must sharpen she must sharpen we must sharpen you must sharpen they must sharpen	I must be sharpening you must be sharpening she must be sharpening we must be sharpening you must be sharpening they must be sharpening
Perfecto	Perfecto con V-ing
I must have sharpened you must have sharpened she must have sharpened we must have sharpened you must have sharpened they must have sharpened	I must have been sharpening you must have been sharpening she must have been sharpening we must have been sharpening you must have been sharpening they must have been sharpening

Negación

Forma simple	Forma con V-ing
I mustn't sharpen you mustn't sharpen she mustn't sharpen we mustn't sharpen you mustn't sharpen they mustn't sharpen	I mustn't be sharpening you mustn't be sharpening she mustn't be sharpening we mustn't be sharpening you mustn't be sharpening they mustn't be sharpening
Perfecto	Perfecto con V-ing
I mustn't have sharpened you mustn't have sharpened she mustn't have sharpened we mustn't have sharpened you mustn't have sharpened they mustn't have sharpened	I mustn't have been sharpening you mustn't have been sharpening she mustn't have been sharpening we mustn't have been sharpening you mustn't have been sharpening they mustn't have been sharpening

Forma interrogativa

Forma simple	Forma con V-ing
must I sharpen? must you sharpen? must she sharpen? must we sharpen? must you sharpen? must they sharpen?	must I be sharpening? must you be sharpening? must she be sharpening? must we be sharpening? must you be sharpening? must they be sharpening?
Perfecto	Perfecto con V-ing
must I have sharpened? must you have sharpened? must she have sharpened? must we have sharpened? must you have sharpened? must they have sharpened?	must I have been sharpening? must you have been sharpening? must she have been sharpening? must we have been sharpening? must you have been sharpening? must they have been sharpening?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I sharpen? mustn't you sharpen? mustn't she sharpen? mustn't we sharpen? mustn't you sharpen? mustn't they sharpen?	mustn't I be sharpening? mustn't you be sharpening? mustn't she be sharpening? mustn't we be sharpening? mustn't you be sharpening? mustn't they be sharpening?
Perfecto	Perfecto con V-ing
mustn't I have sharpened? mustn't you have sharpened? mustn't she have sharpened? mustn't we have sharpened? mustn't you have sharpened? mustn't they have sharpened?	mustn't I have been sharpening? mustn't you have been sharpening? mustn't she have been sharpening? mustn't we have been sharpening? mustn't you have been sharpening? mustn't they have been sharpening?