Describing age
Describing age.

Engin_Akyurt, 2017 [photo], Retrived on 17 Agosto 2017, from: https://pixabay.com/es/modelo-hermosa-retrato-cara-2408507/

Affirmative form:I was 20 years old.
Negative form: I was not 20 years old.
Negative form using contraction: I wasn’t 20 years old.
Interrogative form: Was I 20 years old?
Affirmative answer: Yes, I was.
Negative answer: No, I was not.
Negative answer with contraction: No, I wasn’t.

Describing weight
Describing weight.

Affirmative form: I was 50 kilos when I was 20 years old.
Negative form: I was not 50 kilos when I was 20 years old.
Negative form using contraction: I wasn’t 50 kilos when I was 20 years old.
Interrogative form: Was I 50 kilos when I was 20 years old?
Affirmative answer: Yes, I was.
Negative answer: No, I was not.
Negative answer with contraction: No, I wasn’t.

Describing height
Describing height.

422737, 2015, [illustration], Retrived on 17 Agosto 2017, from: https://pixabay.com/en/men-figure-symbol-man-stature-618504/

Affirmative form: I was 1.60 meters when I was 20 years old.
Negative form: I was not 1.60 meters when I was 20 years old.
Negative form using contraction: I wasn’t 1.60 meters when I was 20 years old.
Interrogative form: Was I 1.60 meters when I was 20 years old?
Affirmative answer: Yes, I was.
Negative answer: No, I was not.
Negative answer with contraction: No, I wasn’t.