Я встал и пошёл к окну.

Because Russian past tense verbs agree with the speaker’s gender in the singular.

• встал, пошёл = masculine speaker
• встала, пошла = feminine speaker
• встало, пошло = neuter
• встали, пошли = plural

So this sentence tells you that the speaker is being presented as male, or at least grammatically masculine.

Встал is the past tense of встать, a perfective verb. In this sentence it means got up or stood up.

That is important because English stood can describe a state, but Russian встал describes the action of rising to one’s feet.

Compare:

• встал = got up, stood up
• стоял = was standing

So Я встал is not I was standing, but I got up / I stood up.

Because пошёл usually means set off, started going, or simply went as a completed action in a sequence.

Compare:

• шёл = was going, was walking, went along
  (imperfective; focuses on the process)
• пошёл = started off / went
  (perfective; focuses on the beginning or completion of the movement)

In a short narrative like this, Russian very often uses perfective verbs for completed steps:

• Я встал и пошёл к окну.
  = I got up and went to the window.

If you said Я встал и шёл к окну, it would sound odd in most contexts, because the first verb is a completed event, but the second focuses on the process rather than the next completed action.

Yes: встал and пошёл are both perfective.

That fits the sentence very well because it describes a sequence of completed actions:

1. I got up
2. I went to the window

Russian often uses perfective verbs in narration when the speaker is moving the story forward step by step.

If you used imperfective verbs instead, the meaning would shift more toward repeated action, process, or background description.

Because the preposition к requires the dative case.

The noun окно is the dictionary form, which is nominative singular. After к, it changes:

• nominative: окно
• dative: окну

So:

• к окну = toward the window / up to the window

This is just a normal case pattern in Russian: many prepositions require a specific case.

Because окно is a neuter noun, and in the dative singular many neuter nouns ending in -о change to -у.

So:

• окно → окну
• письмо → письму
• место → месту

In this sentence, the preposition к triggers the dative, so окно becomes окну.

It is often translated as to, but more literally it means toward, up to, or in the direction of.

So пошёл к окну means something like:

• went to the window
• went over to the window
• walked up to the window

It does not mean going into the window. For that, Russian would use a different preposition, such as в in other contexts.

So к is about approaching a person or object.

Yes, it could often be omitted.

Russian frequently leaves out subject pronouns when the verb already makes the subject clear. So:

• Я встал и пошёл к окну.
• Встал и пошёл к окну.

Both can work, depending on context.

Including Я can make the sentence feel a bit clearer, more explicit, or slightly more contrastive. In a standalone example sentence, keeping Я is very natural because it avoids ambiguity.

Not as fixed as in English.

Я встал и пошёл к окну is a very natural neutral order. But Russian word order is flexible, and changing it can change the emphasis.

For example:

• Я встал и пошёл к окну.
  Neutral narrative order.
• К окну я встал и пошёл
  Possible, but marked; it emphasizes toward the window.
• Встал и пошёл к окну.
  Natural if the subject is already understood.

So the order here is not the only possible one, but it is probably the most straightforward.

No, not naturally.

Even though встал comes from a verb related to standing, in this context it means stood up / got up, not simply stood.

So the sequence is:

• first, the person was sitting, lying, or otherwise not upright
• then they got up
• then they went to the window

If you wanted to say I stood and went to the window, Russian would use a different structure.

Because this is a simple sentence with two coordinated verbs sharing the same subject:

• Я
• встал и пошёл

In Russian, you normally do not put a comma before и in this kind of structure.

A comma would be used in other situations, for example between clauses with different structure or for certain stylistic reasons, but not in this basic pattern.

This is a very good vocabulary question.

• пошёл к окну = went toward the window / started going to the window
• подошёл к окну = came up to the window / approached the window and reached it

So пошёл к окну focuses on the act of going in that direction.
подошёл к окну more strongly suggests that the person actually came right up to it.

In many contexts, both may be possible, but they are not exactly the same.

Because the stressed syllable here is -шёл.

So the word is pronounced roughly like:

• па-ШОЛ

In Russian writing, ё is sometimes replaced by е in less careful texts, so you may also see пошел. But the correct pronunciation is still пошёл.

Using ё is especially helpful for learners because it shows both the correct vowel and the stress.