Conjugación del verbo inglés
CAN PRETREAT

Verbo regular: pretreat - pretreated - pretreated

Afirmación

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

Negación

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

Forma interrogativa

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

Forma interro-negativa

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