There is no past tense of past tense because it is not a verb. For instance, there is no past tense of the word 'desk' (there is no 'desked' or 'did desk', because desk is a noun, not a verb. Or it...
Imperfect is used for ongoing or habitual actions in the past (as opposed to preterite, which is used for finished events). Example: De niño iba a la playa cada verano. (As a child, I went to the...
Our is a possessive determiner - not a verb- it can be used in past or present sentences. It is not past or present . They saw our dog on the road. They see our mother everyday.
