Conjugación del verbo inglés
MUST STRAIN

Verbo regular: strain - strained - strained

Afirmación

Forma simple	Forma con V-ing
I must strain you must strain she must strain we must strain you must strain they must strain	I must be straining you must be straining she must be straining we must be straining you must be straining they must be straining
Perfecto	Perfecto con V-ing
I must have strained you must have strained she must have strained we must have strained you must have strained they must have strained	I must have been straining you must have been straining she must have been straining we must have been straining you must have been straining they must have been straining

Negación

Forma simple	Forma con V-ing
I mustn't strain you mustn't strain she mustn't strain we mustn't strain you mustn't strain they mustn't strain	I mustn't be straining you mustn't be straining she mustn't be straining we mustn't be straining you mustn't be straining they mustn't be straining
Perfecto	Perfecto con V-ing
I mustn't have strained you mustn't have strained she mustn't have strained we mustn't have strained you mustn't have strained they mustn't have strained	I mustn't have been straining you mustn't have been straining she mustn't have been straining we mustn't have been straining you mustn't have been straining they mustn't have been straining

Forma interrogativa

Forma simple	Forma con V-ing
must I strain? must you strain? must she strain? must we strain? must you strain? must they strain?	must I be straining? must you be straining? must she be straining? must we be straining? must you be straining? must they be straining?
Perfecto	Perfecto con V-ing
must I have strained? must you have strained? must she have strained? must we have strained? must you have strained? must they have strained?	must I have been straining? must you have been straining? must she have been straining? must we have been straining? must you have been straining? must they have been straining?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I strain? mustn't you strain? mustn't she strain? mustn't we strain? mustn't you strain? mustn't they strain?	mustn't I be straining? mustn't you be straining? mustn't she be straining? mustn't we be straining? mustn't you be straining? mustn't they be straining?
Perfecto	Perfecto con V-ing
mustn't I have strained? mustn't you have strained? mustn't she have strained? mustn't we have strained? mustn't you have strained? mustn't they have strained?	mustn't I have been straining? mustn't you have been straining? mustn't she have been straining? mustn't we have been straining? mustn't you have been straining? mustn't they have been straining?