Сохрани билет в кошельке, чтобы не потерять его.

Keep the ticket in your wallet so you don’t lose it.

Breakdown of Сохрани билет в кошельке, чтобы не потерять его.

• в: in
• не: not
• потерять: to lose
• его: it
• сохранить: to keep
• кошелёк: wallet
• чтобы: so that / in order to
• билет: ticket

Questions & Answers about Сохрани билет в кошельке, чтобы не потерять его.

Why is Сохрани used instead of Сохраняй?

Сохрани is the perfective imperative (a “do it and have it done” command). It implies a one-time action with a clear result: put it somewhere safe / make sure it’s saved.
Сохраняй would be imperfective, sounding more like keep saving/keep it safe (as an ongoing habit). In this context, you’re being told to do a single concrete action: put the ticket in the wallet.

What case is билет and why?

Билет is accusative singular (same form as nominative for an inanimate masculine noun). It’s the direct object of the verb сохранить (“to keep/save”), so it’s in the accusative: Сохрани (что?) билет.

Why is it в кошельке and not в кошелёк?

Russian distinguishes:

• в + accusative = motion into something (destination): в кошелёк = “into the wallet”
• в + prepositional = location in something (where): в кошельке = “in the wallet”

Here the sentence focuses on where the ticket should be kept/stored (location), so в кошельке (prepositional) is natural. If you wanted to emphasize the action of putting it in, you might also hear Сохрани билет в кошелёк colloquially, but the “correct” spatial logic is usually:

• Положи билет в кошелёк (put it into)
• Храни/держи билет в кошельке (keep it in)

What does чтобы mean here, grammatically?

Чтобы introduces a purpose clause: “so that / in order to.”
So …, чтобы не потерять его = “…, so as not to lose it.”

It typically requires a verb in the past or infinitive depending on structure. Here it’s infinitive (потерять) because the subject is understood to be the same person as in the main clause (the person being told what to do).

Why is не потерять in the perfective infinitive?

Потерять is perfective and means to lose (as a completed event)—i.e., for the ticket to end up lost.
With чтобы не + infinitive, perfective is very common when you’re preventing a specific unwanted outcome: so that you don’t end up losing it.
Не терять (imperfective) would stress the ongoing process: so you don’t keep misplacing it / so you don’t lose it (in general as a habit).

Why is его used, and what does it refer to?

Его is the accusative singular pronoun “him/it,” and here it means “it” = билет (ticket).
Even though билет is inanimate, Russian uses the same pronoun form as “him” for masculine nouns: его.

Is его necessary? Could the sentence omit it?

It’s optional in many contexts. You can say:

• Сохрани билет в кошельке, чтобы не потерять.

Omitting его still clearly refers to the ticket, especially in a short sentence. Including его makes the reference explicit and can sound a bit more careful/complete.

Why isn’t it чтобы его не потерять? Is that also correct?

Чтобы его не потерять is also correct and very common.
Placement differences:

• чтобы не потерять его: the negation attaches to the verb first; его comes after (neutral, slightly conversational)
• чтобы его не потерять: brings его forward (often sounds a bit more natural/flowing, and highlights “it” as the thing you don’t want to lose)

Both mean the same here.

What’s the difference between сохранить and хранить/держать in this kind of sentence?

• сохранить = “to preserve/keep safe; to make sure it remains” (often result-oriented, one-time)
• хранить = “to store/keep” (more like a general state or habit)
• держать = “to keep/hold” (everyday “keep it in…”)

For a practical instruction, Russians might more commonly say Держи билет в кошельке or Храни билет в кошельке, but Сохрани… чтобы не потерять is perfectly understandable and emphasizes “ensure it doesn’t get lost.”

Why is there a comma before чтобы?

Because чтобы introduces a subordinate clause (чтобы не потерять его). In Russian, subordinate clauses are typically separated by a comma from the main clause: Сохрани билет в кошельке, чтобы не потерять его.

Does в кошельке imply “your wallet,” or could it be any wallet?

By default, it often implies the listener’s wallet (context supplies possession). Russian frequently omits possessives when it’s obvious.
If you need to be explicit, you can add:

• в своём кошельке = “in your own wallet”
• в моём/твоём кошельке = “in my/your wallet”

Is кошелёк ever spelled кошелек and does it change pronunciation?

Yes. кошелёк is often written as кошелек because ё is frequently replaced by е in everyday writing.
Pronunciation, however, is still with ё: ка-ша-ЛЁК (stress on -лёк). The case form в кошельке is pronounced в ка-шаль-КЕ (stress on the last syllable).

Could I replace в кошельке with в бумажнике? Any nuance?

Yes.

• кошелёк usually suggests a wallet more for money/coins/cards (often smaller)
• бумажник can sound like a more formal or older-fashioned word for a wallet, historically for papers/banknotes

Both work: Сохрани билет в бумажнике… is fine.

Is the sentence formal or informal?

The imperative Сохрани can be used in both, but by itself it often sounds like speaking to someone you address as ты (informal) unless the situation is clearly instructional.
For polite/formal вы, you’d say:

• Сохраните билет в кошельке, чтобы не потерять его.