Conjugación del verbo inglés
MUST PRETREAT

Verbo regular: pretreat - pretreated - pretreated

Afirmación

Forma simple	Forma con V-ing
I must pretreat you must pretreat she must pretreat we must pretreat you must pretreat they must pretreat	I must be pretreating you must be pretreating she must be pretreating we must be pretreating you must be pretreating they must be pretreating
Perfecto	Perfecto con V-ing
I must have pretreated you must have pretreated she must have pretreated we must have pretreated you must have pretreated they must have pretreated	I must have been pretreating you must have been pretreating she must have been pretreating we must have been pretreating you must have been pretreating they must have been pretreating

Negación

Forma simple	Forma con V-ing
I must not pretreat you must not pretreat she must not pretreat we must not pretreat you must not pretreat they must not pretreat	I must not be pretreating you must not be pretreating she must not be pretreating we must not be pretreating you must not be pretreating they must not be pretreating
Perfecto	Perfecto con V-ing
I must not have pretreated you must not have pretreated she must not have pretreated we must not have pretreated you must not have pretreated they must not have pretreated	I must not have been pretreating you must not have been pretreating she must not have been pretreating we must not have been pretreating you must not have been pretreating they must not have been pretreating

Forma interrogativa

Forma simple	Forma con V-ing
must I pretreat? must you pretreat? must she pretreat? must we pretreat? must you pretreat? must they pretreat?	must I be pretreating? must you be pretreating? must she be pretreating? must we be pretreating? must you be pretreating? must they be pretreating?
Perfecto	Perfecto con V-ing
must I have pretreated? must you have pretreated? must she have pretreated? must we have pretreated? must you have pretreated? must they have pretreated?	must I have been pretreating? must you have been pretreating? must she have been pretreating? must we have been pretreating? must you have been pretreating? must they have been pretreating?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not pretreat? must you not pretreat? must she not pretreat? must we not pretreat? must you not pretreat? must they not pretreat?	must I not be pretreating? must you not be pretreating? must she not be pretreating? must we not be pretreating? must you not be pretreating? must they not be pretreating?
Perfecto	Perfecto con V-ing
must I not have pretreated? must you not have pretreated? must she not have pretreated? must we not have pretreated? must you not have pretreated? must they not have pretreated?	must I not have been pretreating? must you not have been pretreating? must she not have been pretreating? must we not have been pretreating? must you not have been pretreating? must they not have been pretreating?