past Tense

1. Irregular verds

1.1. Int.

1.1.1. I wasn't at the library.

1.2. aff.

1.2.1. We wrote our letters

1.3. Neg.

1.3.1. He did not speak Russian

2. Regular Verds

2.1. Int.

2.1.1. why are Raúl and Juan studying

2.2. aff.

2.2.1. You need help

2.3. Neg.

2.3.1. you did not live