Minä juoksen puistossa.

I run in the park.

Breakdown of Minä juoksen puistossa.

• minä: I
• puisto: the park
• -ssa: in
• juosta: to run

Questions & Answers about Minä juoksen puistossa.

Why is the pronoun Minä included? Can I omit it?

In Finnish the verb ending already shows who is doing the action. Saying juoksen alone is enough to mean “I run” or “I am running.” You include Minä only for emphasis or clarity (e.g. to contrast “I” with someone else). Otherwise native speakers often drop the pronoun entirely.

What does juoksen mean, and what does the -n ending tell us?

Juoksen is the first‐person singular present tense of the verb juosta (“to run”).

• The stem is juoks- (infinitive juosta loses the -ta).
• The ending -n marks 1st person singular (“I”).
  So juoksen literally = “I‐run.”

What case is puistossa, and what does the -ssa ending mean?

Puistossa is the inessive case of puisto (“park”). The ending -ssa (or -ssä after front vowels) expresses being “inside” or “in” something. Thus puistossa = “in the park.”

How does puistossa differ from puistoon (into the park) and puistolla (at the park)?

• Puistossa (Inessive, -ssa): “in the park” (inside its area).
• Puistoon (Illative, -oon/-hVn): “into the park” (movement inside).
• Puistolla (Adessive, -lla/-llä): “at the park” or “on the park grounds” (location at or on something).

Example:
• Menen puistoon. (“I’m going into the park.”)
• Olen puistossa. (“I’m inside the park.”)
• Tapaan sinut puistolla. (“I’ll meet you at the park.”)

Is there a distinction between “I run” and “I am running” in Finnish?

No. Finnish has just one present‐tense form. Context tells you whether it’s a habitual action (“I run every morning”) or a current ongoing action (“I am running right now”). If needed you can add words like tällä hetkellä (“at the moment”) for clarity.

Can I change the word order? Why is it Subject‐Verb‐Object here?

Finnish word order is relatively flexible—any element (subject, verb, object, adverbial) can move for emphasis or style. The default (neutral) order is Subject-Verb-Adverbial (S-V-A) in a simple sentence:
Minä (S) juoksen (V) puistossa (A).
You could say Puistossa juoksen to emphasize the place (“It’s in the park that I run”), or Juoksen puistossa as a neutral statement.