Ben sokaklarda gezinmek istiyorum.

Yes. Turkish is a pro-drop language, which means the subject pronoun can be omitted because the verb ending already indicates the person.

• Ben sokaklarda gezinmek istiyorum.
• Sokaklarda gezinmek istiyorum. (meaning is exactly the same)

sokaklarda = “in/at the streets.” It breaks down as:

• sokak (street)
• -lar (plural suffix → “streets”)
• -da (locative case suffix → “in/at”)
  By vowel harmony, -da follows a of sokak, giving sokak
  • -lar
    • -da → sokaklarda.

There are two related verbs:

• gezmek (to go around, visit)
• gezinmek (to stroll, roam about)

The form gezinmek adds the inchoative/reflexive suffix -in-, emphasizing the act of wandering or strolling casually. In many contexts they overlap, but gezinmek often highlights a leisurely activity (“to be out and about”).

Turkish uses the infinitive (verbal noun) form verb + mek/-mak when another verb (like istemek “to want”) governs it. You’re literally saying:

1. gez-in-mek = “to wander”
2. istiyorum = “I want”
   → gez-in-me-k istiyorum = “I want to wander.”

Turkish follows a Subject-Object-Verb order, so auxiliary or main verbs always land at the end.
istiyorum breakdown:

• iste- = root of istemek (“to want”)
• -iyor- = present continuous marker (often used for simple present in Turkish)
• -um = first person singular suffix (“I”)

Literally “I am wanting”, but functionally “I want.”

Attach the negative suffix -me- to ister before tense/person endings:

• Sokaklarda gezinmek istemiyorum.
  Here istemiyorum = iste- + ‑me- + ‑iyor- + ‑um → “I am not wanting” → “I don’t want.”