Which past tense is used for ongoing or in-progress actions?

Which past tense is used when there is a specific end or beginning?

Which past tense is used when there is NO specific end or beginning?

Which past tense is used to express what one "used to do" or "would do" often?

Which past tense is used to express a series or sequence of completed actions?

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

We went to the beach last summer.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

We went to the beach every summer.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

I ate dinner at 5:00.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

I always ate dinner at 5:00.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

She studied for three hours.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

We were studying while mom was cooking dinner.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

They went / would go to the movies often.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

Everyone woke up late this morning.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

I called you twice.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

First I woke up, then I brushed my teeth.

If you were to write or say the following sentence in Spanish, would you need to use the preterite or imperfect? (Consider the uses of each tense.)

When I was six years old, I was really shy.