Change verb from present tense to preterite tense in spanish

tu estudias

The sentence that we have here is:

Tú estudias.

Where the person is "Tú" and the verb, already conjugated in the present tense, is "estudias", and the verb non conjugated is "estudiar".

So now we want to conjugate "estudiar" in the preterite tense where the person is "Tú"

This would be:

Tú estudiaste- in the perfect preterite.

Tu estudiabas- in the imperfect preterite.

beatriz just sent me an electronic message with a picture of my granddaughter.

what do i do to see the photo?

do i click here to open it?

2 examples of how people live in their space and time defined with their particular characteristics