Если обложка порвалась, её можно аккуратно заклеить дома.

Если means if and introduces a condition.

So Если обложка порвалась... means If the cover got torn / has torn.

Russian often uses the same basic pattern as English here:

• Если X, Y = If X, then Y

The second part gives the result or possible action:

• её можно аккуратно заклеить дома = it can be carefully repaired/glued at home

Russian does not need a separate word for then here.

Порвалась is the past tense of порваться, a reflexive verb.

Here is the breakdown:

• рвать = to tear
• порвать = to tear up / tear completely
• порваться = to get torn, to tear accidentally, to rip

The -ся / -сь makes the verb reflexive, but in many cases that does not mean a literal oneself. Here it changes the meaning from someone tears something to something gets torn / rips.

Compare:

• Он порвал обложку. = He tore the cover.
• Обложка порвалась. = The cover tore / got torn.

So порвалась is used because the cover is presented as undergoing the action, not actively tearing something else.

Because обложка is a feminine singular noun, and past tense verbs in Russian agree with gender and number.

Past tense forms:

• masculine: порвался
• feminine: порвалась
• neuter: порвалось
• plural: порвались

Since обложка is feminine, the correct form is порвалась.

Because её is the object form of она.

Here обложка is the thing being repaired, so it is the direct object of заклеить.

• она = she / it, as the subject
• её = her / it, as the object

Compare:

• Обложка порвалась. = The cover got torn.
  Here обложка is the subject.
• Её можно заклеить. = It can be glued/repaired.
  Here её is the object.

So Russian uses её just like English switches from she to her, although in this sentence it is best translated as it.

Because Russian nouns have grammatical gender, while English usually does not for objects.

Обложка is grammatically feminine in Russian, so pronouns referring to it are feminine:

• она
• её

But in English, a cover is normally it, not she/her.

So:

• обложка ... её in Russian
• cover ... it in English

This is completely normal and very common when translating from Russian.

Можно means something like:

• it is possible
• one can
• you can
• it can be done

It is an impersonal word, so there is no specific subject.

In её можно аккуратно заклеить дома, the sense is:

• it can be carefully glued/repaired at home
• you can carefully glue it at home

Russian often uses можно + infinitive to express general possibility or permission.

Examples:

• Можно войти? = May I come in?
• Это можно исправить. = This can be fixed.

Because можно is followed by an infinitive.

Pattern:

• можно + infinitive

So:

• можно заклеить = can be glued / can glue

This is similar to English can + base verb:

• can repair
• can glue

Russian does not use a finite verb after можно here; it uses the infinitive.

This is an aspect question.

• заклеить = perfective
• заклеивать = imperfective

The perfective заклеить is used because the sentence talks about a single complete repair action: fixing the torn cover.

So the idea is:

• If the cover is torn, it can be repaired/glued up

The imperfective заклеивать would sound more like an ongoing, repeated, or process-focused action.

Compare:

• Её можно заклеить. = It can be glued/fixed (successfully, as a complete action).
• Её можно заклеивать постепенно. = It can be glued little by little.
  This focuses more on process.

Literally, заклеить means to glue over, to seal with glue, or to mend by gluing.

In this sentence, it means something like:

• to repair it by gluing
• to patch it up carefully
• to glue the tear back together

The prefix за- often gives the sense of covering up or closing something by means of the action.

So if a cover is torn, заклеить suggests fixing the tear with glue or tape.

Аккуратно is an adverb meaning:

• carefully
• neatly
• tidily

It modifies заклеить, telling you how the repair should be done.

So:

• аккуратно заклеить = to glue it carefully/neatly

It often implies doing something in a way that looks nice and does not make things worse.

Дома is a very common adverb meaning at home.

So:

• дома = at home
• в доме = in the house/building

These are not always the same.

In this sentence, the meaning is that you can do the repair yourself at home, so дома is the natural choice.

Examples:

• Я дома. = I’m at home.
• Я в доме. = I’m in the house.

The second one focuses more on physical location inside a building, while дома expresses the general idea of being at home.

There is no explicit subject. The construction is impersonal.

It means something like:

• one can carefully glue it at home
• you can carefully glue it at home
• it can be carefully glued at home

Russian often leaves the doer unspecified when the point is general possibility, not who exactly does it.

So the sentence is not about who repairs it, but about the fact that this repair is possible.

Yes. Russian word order is fairly flexible, although each order can slightly change emphasis.

The original:

• Если обложка порвалась, её можно аккуратно заклеить дома.

Other possible versions:

• Её можно аккуратно заклеить дома, если обложка порвалась.
• Если обложка порвалась, дома её можно аккуратно заклеить.

The original version is very natural and neutral:

1. state the condition
2. state the possible solution

So while other orders are possible, this one is clear and standard.

Её contains the letter ё, pronounced roughly yo.

So:

• её is pronounced approximately yi-YO

In modern Russian, ё is often written as е in ordinary texts, so you may also see:

• ее

But the correct pronunciation is still её, not plain ее with two separate e sounds.

For learners, it is helpful when ё is written, because it removes ambiguity.

Usually the best translation here is:

• got torn
• tore
• has torn only in very specific contexts, and usually not naturally in English
• was torn is possible, but it can sound more like a passive description than an event

Russian порвалась describes an event: the cover became torn.

So the most natural English choices are:

• If the cover got torn...
• If the cover tore...
• If the cover is torn...
  This is often used in smoother English even though it shifts slightly from event to state.

That is why translation depends on style, but grammatically the Russian form itself is a past event form.