Trening radimo u dvorani kad je kiša, a na igralištu kad je sunce.

We train in the sports hall when it’s raining, and on the playing field when it’s sunny.

Breakdown of Trening radimo u dvorani kad je kiša, a na igralištu kad je sunce.

• biti: to be
• u: in
• sunce: sun
• kiša: rain

Questions & Answers about Trening radimo u dvorani kad je kiša, a na igralištu kad je sunce.

Why is there no word for “we” in this sentence?

Croatian usually leaves out subject pronouns (like ja, ti, mi, vi, etc.) because the verb ending already shows who the subject is.

In radimo, the ending -mo tells you it’s “we” (1st person plural). So:

• Radimo trening. = We do training.
• Mi radimo trening. = We do training. (with extra emphasis on we)

Using mi is possible, but it’s only added for emphasis or contrast, for example:

• Mi radimo trening u dvorani, a oni rade na igralištu.
  We train in the hall, but they train on the field.

In the neutral sentence you gave, the pronoun mi is simply not needed.

Why is it trening radimo and not radimo trening?