Nie lubię słodkich perfum, więc wybieram lekkie perfumy do pracy.

Lubię means I like. It is the 1st person singular present tense form of lubić.

• lubić = to like
• lubię = I like

The ending -ę shows that the subject is I.

Polish often leaves out subject pronouns when they are clear from the verb ending.

So:

• (Ja) nie lubię... = I don’t like...
• (Ja) wybieram... = I choose...

The pronoun ja is usually added only for emphasis or contrast, for example:

• Ja nie lubię słodkich perfum, ale ona lubi.
  I don’t like sweet perfumes, but she does.

Because in standard Polish, a negated verb often makes its direct object go into the genitive instead of the accusative.

Compare:

• Lubię słodkie perfumy. = I like sweet perfumes.
• Nie lubię słodkich perfum. = I don’t like sweet perfumes.

So after nie lubię, the object changes form:

• słodkie perfumy → słodkich perfum

This is a very common pattern in Polish.

Perfumy is a plural-only noun in normal Polish, like English words such as scissors or pants.

Its main form is:

• perfumy = perfume / perfumes

But nouns change form depending on case. Here:

• perfumy = nominative/accusative plural
• perfum = genitive plural

So:

• nie lubię słodkich perfum → genitive plural
• wybieram lekkie perfumy → accusative plural

In Polish, adjectives must agree with the noun they describe in:

• gender
• number
• case

So the adjective changes together with the noun:

• słodkich perfum → both are genitive plural
• lekkie perfumy → both are accusative plural here

That is why you cannot keep the adjective in one form while the noun changes.

Because wybierać / wybieram takes a direct object in the accusative when it is not negated.

So:

• wybieram lekkie perfumy = I choose light perfumes

For this kind of plural noun, the accusative plural looks the same as the nominative plural, so you see:

• perfumy
• lekkie

not a different-looking form.

Więc means so, therefore, or thus.

In this sentence it links two ideas:

• Nie lubię słodkich perfum
• więc wybieram lekkie perfumy do pracy

So the meaning is: I don’t like sweet perfumes, so I choose light perfumes for work.

The comma is normal in Polish before więc when it connects two clauses.

Here do pracy means for work or for wearing to work.

Literally, do often means to, but in context Polish uses do pracy naturally for something intended for work.

The noun changes because do requires the genitive:

• praca = work
• do pracy = to/for work

So pracy is the genitive singular form of praca.

Wybieram is the imperfective form, and here it suggests a habitual or general action:

• wybieram = I choose / I tend to choose

That fits the meaning of a general preference.

By contrast:

• wybiorę = I will choose / I’ll pick

This is perfective and usually refers to a single completed choice in the future.

So in this sentence, wybieram is the natural choice.

Yes. Polish word order is more flexible than English because the endings show grammatical roles.

The original sentence is a neutral, natural order:

• Nie lubię słodkich perfum, więc wybieram lekkie perfumy do pracy.

But you could change the order for emphasis, for example:

• Do pracy wybieram lekkie perfumy.
  Emphasis on for work.
• Lekkie perfumy wybieram do pracy.
  Emphasis on light perfumes.

The meaning stays similar, but the focus shifts.