Conjugación del verbo inglés
MUST CHECK

Verbo regular: check - checked - checked

Afirmación

Forma simple	Forma con V-ing
I must check you must check she must check we must check you must check they must check	I must be checking you must be checking she must be checking we must be checking you must be checking they must be checking
Perfecto	Perfecto con V-ing
I must have checked you must have checked she must have checked we must have checked you must have checked they must have checked	I must have been checking you must have been checking she must have been checking we must have been checking you must have been checking they must have been checking

Negación

Forma simple	Forma con V-ing
I mustn't check you mustn't check she mustn't check we mustn't check you mustn't check they mustn't check	I mustn't be checking you mustn't be checking she mustn't be checking we mustn't be checking you mustn't be checking they mustn't be checking
Perfecto	Perfecto con V-ing
I mustn't have checked you mustn't have checked she mustn't have checked we mustn't have checked you mustn't have checked they mustn't have checked	I mustn't have been checking you mustn't have been checking she mustn't have been checking we mustn't have been checking you mustn't have been checking they mustn't have been checking

Forma interrogativa

Forma simple	Forma con V-ing
must I check? must you check? must she check? must we check? must you check? must they check?	must I be checking? must you be checking? must she be checking? must we be checking? must you be checking? must they be checking?
Perfecto	Perfecto con V-ing
must I have checked? must you have checked? must she have checked? must we have checked? must you have checked? must they have checked?	must I have been checking? must you have been checking? must she have been checking? must we have been checking? must you have been checking? must they have been checking?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I check? mustn't you check? mustn't she check? mustn't we check? mustn't you check? mustn't they check?	mustn't I be checking? mustn't you be checking? mustn't she be checking? mustn't we be checking? mustn't you be checking? mustn't they be checking?
Perfecto	Perfecto con V-ing
mustn't I have checked? mustn't you have checked? mustn't she have checked? mustn't we have checked? mustn't you have checked? mustn't they have checked?	mustn't I have been checking? mustn't you have been checking? mustn't she have been checking? mustn't we have been checking? mustn't you have been checking? mustn't they have been checking?