Question

como interrogar y negar una oracion en pasado simple

Answer 1

tu puedes usar el auxiliar did para preguntas simples en pasado, al usar este auxiliar el verbo de la oración se escribe en presente y solo usas el signo interrogativo final (?)
Formula:
Did + Subject + Present Verb + Complement + (?)
ejemplo:
Did it help you?

Nota:
Contestas con el mismo auxiliar did.
Yes, it did or Not, it didn't (de acuerdo a la pregunta anterior)

Answer 2

Did you know a sentence in simple past?
No, I didn't it.
No, I didn't know a sentence in simple past.