Prima di uscire, devo abbottonare la camicia; tu puoi abbottonare la giacca da sola?

In Italian, prima di + infinitive is the normal way to say before doing something.

• prima di uscire = before going out
• prima di mangiare = before eating
• prima di dormire = before sleeping

So di is required here before the infinitive uscire.

If you use a full clause instead of an infinitive, Italian usually switches structure:

• prima che esca = before I go out / before he/she goes out

But in your sentence, the subject is understood and the infinitive is the natural choice.

Because after prima di, Italian uses the infinitive when the action is expressed in a general, non-conjugated way.

• Prima di uscire = Before going out / before I go out

You would use esco only in a fully conjugated clause:

• Prima che esco is not standard Italian here.
• Correct: prima che io esca or prima di uscire

And uscendo means going out or while going out, which gives a different idea, so it would not fit this sentence.

Italian often uses the definite article where English uses a possessive adjective, especially with clothing, body parts, and personal items when ownership is obvious.

So:

• abbottonare la camicia = button my/the shirt
• lavarsi le mani = wash one’s hands
• mettersi il cappotto = put on one’s coat

Since it is already clear whose shirt it is, Italian does not need mia here. You could say la mia camicia, but it would usually sound more emphatic or contrastive.

Abbottonare means to button or to fasten with buttons.

Examples:

• abbottonare la camicia = to button up the shirt
• abbottonare la giacca = to button the jacket

It comes from bottone = button.

A related form you may also see is the reflexive verb:

• abbottonarsi la camicia = to button up one’s shirt

In your sentence, the non-reflexive form is used because the object is stated directly: la camicia, la giacca.

Yes. Both are possible, but they are structured a little differently.

• Devo abbottonare la camicia = I have to button the shirt
• Devo abbottonarmi la camicia = I have to button my shirt / button the shirt on myself

The version with -mi makes the action more explicitly connected to the speaker’s own body or clothing. Italian often likes this reflexive/indirect-object style with clothes:

• mettermi la giacca
• togliermi le scarpe
• abbottonarmi la camicia

The original sentence is still perfectly natural.

Yes, Italian often omits subject pronouns because the verb ending already shows the subject.

So normally you could say:

• Puoi abbottonare la giacca da sola?

That would already mean Can you button the jacket by yourself?

Adding tu gives extra emphasis, contrast, or directness. It can suggest something like:

• As for you, can you... ?
• Can you yourself... ?

In this sentence, tu may be there to contrast with I in the first part:

• I have to button my shirt; can you button your jacket by yourself?

Da sola means by yourself / on your own / alone when speaking to a female.

• da solo = by yourself, if speaking to a male
• da sola = by yourself, if speaking to a female
• da soli = by yourselves / by themselves, masculine or mixed plural
• da sole = by yourselves / by themselves, feminine plural

So sola agrees with the person being addressed. The sentence is speaking to you and implies that the person is female.

Not exactly.

• da sola emphasizes doing something without help or on one’s own
• sola by itself usually means alone

In this sentence, da sola is the natural choice because the idea is:

• Can you button the jacket by yourself?

If you said tu puoi abbottonare la giacca sola?, that would sound wrong here.

Puoi comes from potere and means can / are able to / may.

• puoi abbottonare...? = can you button...?

Sai comes from sapere and usually means know how to.

• sai nuotare? = do you know how to swim?

In this sentence, the question is about practical ability in the moment or whether the person is capable of doing it alone, so puoi is the better choice.

The semicolon links two closely related parts:

• Prima di uscire, devo abbottonare la camicia
• tu puoi abbottonare la giacca da sola?

It marks a stronger pause than a comma but keeps the two ideas connected. In normal everyday writing, many people might also use a period, or sometimes even a comma in informal writing.

So the semicolon here is mainly a punctuation/style choice, not a special grammar rule.

Usually giacca means jacket. Depending on context, it can also sometimes be translated more generally as coat or suit jacket, but jacket is the safest basic meaning.

For example:

• giacca e cravatta = jacket and tie
• mettersi la giacca = to put on one’s jacket

In your sentence, button the jacket is the most straightforward translation.