Real English 44 usually on Sat. night vs last Saturday night
Contrast of present simple and simple past.

Real English Subtitled Q (82b) Second Language Series # 3
Ernie and Eric are world War II reenactors. Ernie's parents are Cuban but his first language is English. Eric's native language is also English, and he learned Spanish in Spain in perfect circumstances.

Real English Lesson 10 The Jones Family CC Double
For beginners: "is", "are" and adjectives.