Веломайстерня вже відкрита.

In Ukrainian, the verb to be is usually omitted in the present tense.

So where English says:

The bike repair shop is already open

Ukrainian simply says:

Веломайстерня вже відкрита

This is completely normal. If you want past or future, then forms of бути appear:

• Веломайстерня була відкрита = The bike repair shop was open
• Веломайстерня буде відкрита = The bike repair shop will be open

So in the present tense, the sentence is not missing anything.

Веломайстерня is a single noun meaning bike repair shop / bicycle workshop.

It is built from:

• вело- = bike-, bicycle-
• майстерня = workshop, repair shop, studio

So literally it is something like bicycle workshop.

This kind of compound word is common in Ukrainian.

Because it agrees with веломайстерня, which is a feminine singular noun.

In Ukrainian, adjectives and adjective-like forms must agree with the noun in:

• gender
• number
• case

Here:

• веломайстерня = feminine singular
• so відкрита is also feminine singular

Compare:

• магазин вже відкритий = the shop is already open
  masculine
• майстерня вже відкрита = the workshop is already open
  feminine
• вікно вже відкрите = the window is already open
  neuter
• двері вже відкриті = the doors are already open
  plural

It behaves like an adjective, though historically it is related to a participle.

For a learner, the most useful way to understand it here is:

• відкритий / відкрита / відкрите / відкриті = open

So in this sentence, відкрита describes the state of the workshop: it is open.

English uses open the same way: it can feel adjective-like, even though it is related to the verb open.

Вже means already.

It shows that the situation has happened by now or sooner than expected / at this point.

So:

• Веломайстерня відкрита = The bike repair shop is open
• Веломайстерня вже відкрита = The bike repair shop is already open

Depending on context, вже can sound like:

• already
• by now
• now already

That is a very natural position for it.

The sentence structure is:

• Веломайстерня = topic
• вже = already
• відкрита = open

So it flows as:

The bike repair shop already open

with the present-tense is understood.

You may hear slight word-order changes for emphasis, but Веломайстерня вже відкрита is a normal neutral word order.

Yes, Ukrainian word order is more flexible than English, but changing it usually changes the emphasis, not the basic meaning.

For example:

• Веломайстерня вже відкрита = neutral
• Вже веломайстерня відкрита = more marked; emphasizes already
• Відкрита вже веломайстерня = unusual in everyday neutral speech; possible in special contexts

For a learner, the safest version is the original:

Веломайстерня вже відкрита

Ukrainian has no articles.

So веломайстерня can mean:

• a bike repair shop
• the bike repair shop

The exact meaning depends on context.

That is why one Ukrainian sentence can correspond to more than one English version.

Sometimes yes, but відкрита is the more natural choice here.

Both words can relate to the idea of open, but there is a nuance:

• відчинений / відчинена is often used for things that are physically opened, like doors, windows, gates
• відкритий / відкрита is broader and is very natural for places, businesses, shops, museums, workshops, etc.

So for a business or place being open for customers, відкрита is the best fit.

Usually it means open for business / operating.

With places like shops, cafés, workshops, or offices, відкрита often means that the place is open and functioning.

Of course, context matters. In some situations it could also imply physically opened, but the most likely meaning here is that the bike repair shop is now open to customers.

You would use не:

• Веломайстерня ще не відкрита = The bike repair shop is not open yet
• Веломайстерня не відкрита = The bike repair shop is not open

Notice the very common pair:

• вже = already
• ще не = not yet

So:

• вже відкрита = already open
• ще не відкрита = not open yet

Yes, stress matters in Ukrainian pronunciation.

A learner would usually want to remember:

• веломайсте́рня
• відкри́та

Even when the spelling is clear, the stress is not always predictable, so it is worth learning it together with the word.