утвердительная форма
i waited for a bus
you waited for a bus
he/she/it waited for a bus
they waited for a bus
отрицательная форма
i did not wait for a bus.
you did not wait for a bus
he/she/it does not wait for a bus.
вопросительная форма
did i wait for a bus?
did you wait for a bus?
does he/she/it wait for a bus?