Let's look at the sentence pattern.

Do you remember how the character said,

I went to the stadium with my dad to watch a soccer match?

I went to the stadium with my dad to watch a soccer match.

I went to the stadium with my papa a ver a partido of football.

I feel at the stadium with my papa for a bit of a football.

This sentence follows the pattern here.

Subject, optional, plus irregular verb in the preterite plus compliment.

In Spanish, the pretarite is one of the past tenses.

We use it to talk about completed actions,

things that happened once or were finished in the past.

We often lived out the subject because the verb form already tells us who is doing the action,

but it's okay to include it too.

Here's how the line from the dialogue uses the pattern.

Fui at the stadium with my papa to have a partido of football.

I went to the stadium with my dad to watch a soccer match. Let's break it down.

Fui.

This is the first person singular form of I,

meaning I went.

The subject, yo, is dropped because Fui already tells us its first person.

It shows a completed past action.

Al-stadio, meaning to the stadium, tells us where the action happened.

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