Profesorica je trepnula, klimnula i rekla da možemo početi s testom.

Profesorica is the feminine form, meaning female professor/teacher. Croatian nouns often show gender clearly.

• profesor = a male professor
• profesorica = a female professor

Because the person in the sentence is female, the past-tense verb forms also match that gender:

• trepnula
• klimnula
• rekla

Those -la endings show a feminine singular subject.

Je is the 3rd person singular present form of biti (to be), and here it is used as part of the past tense.

Croatian forms the past tense with:

• the l-participle of the verb
• plus a form of biti

So:

• je trepnula = she blinked / has blinked
• je klimnula = she nodded
• je rekla = she said

In this sentence, je appears only once, but it applies to all three past participles:

• Profesorica je trepnula, klimnula i rekla...

This is very normal in Croatian.

That -la ending is the feminine singular form of the past active participle used in Croatian past tense.

Compare:

• masculine: rekao
• feminine: rekla
• neuter: reklo

And similarly:

• trepnuo / trepnula
• klimnuo / klimnula

Because the subject is profesorica (feminine singular), the verbs must agree with it.

This is about Croatian clitic word order. Je is a clitic, and clitics usually come in the second position of the clause.

So the natural order is:

• Profesorica je trepnula...

not usually:

• Profesorica trepnula je...

Croatian clitics like je, sam, si, smo, ste, su tend to appear very early in the sentence, usually after the first stressed element.

After verbs like reći (to say), Croatian often uses a da-clause.

So:

• rekla da možemo početi = she said that we can start

This is very common and natural.

English often uses that + clause, and Croatian does something similar with da.

You might expect something like rekla početi, but that would not work here. After rekla, you need a clause expressing what was said, and da možemo početi does that.

After moći (can, be able to), Croatian normally uses an infinitive.

So:

• možemo početi = we can start

Not:

• možemo počnemo

That would be ungrammatical in standard Croatian.

This is similar to English:

• we can start not
• we can we start

Početi is the perfective verb, while počinjati is the imperfective one.

Here the idea is a single completed transition: to begin/start now. For that, Croatian normally uses the perfective verb:

• početi = to begin, to start
• počinjati = to be beginning / to begin habitually or repeatedly

Since the professor is giving permission to start the test at that moment, početi is the natural choice.

Testom is instrumental singular, used after the preposition s(a).

So:

• s testom = with the test

The noun test changes like this:

• nominative: test
• instrumental: testom

After s / sa, Croatian requires the instrumental case.

In this sentence, početi s testom is a common expression meaning to start the test or more literally to start with the test.

Yes, in some contexts Croatian speakers may also say things like:

• početi test
• početi s testom

But početi s testom is very natural and idiomatic, especially when meaning begin working on the test.

The version with s can feel a bit like start with the test. In many real situations, both are understandable, but početi s testom is a very standard and common phrasing.

These are short, single-action verbs:

• trepnuti = to blink
• klimnuti = to nod

Both are perfective verbs, which fits the idea of brief completed actions:

• she blinked
• she nodded

Their past feminine forms are:

• trepnula
• klimnula

This is normal in Croatian. The main verb is in the past:

• rekla = said

But what she said is expressed as a clause from that moment’s perspective:

• da možemo početi = that we can start

So Croatian keeps možemo in the present because it reflects the content of the statement as it was said at that moment.

English does something similar sometimes:

• She said that we can start. It can also say:
• She said that we could start.

Croatian very naturally uses:

• rekla da možemo početi

In this sentence, no. Here da means that, introducing reported speech/content after rekla.

So:

• rekla da možemo početi = said that we can start

Croatian da can have different meanings in other contexts, including purpose, but here the structure after rekla clearly shows reported content.

Yes, the pronoun ona is omitted because Croatian usually does not need subject pronouns when the subject is already clear.

Here the subject is explicitly given as Profesorica, so adding ona would be unnecessary and unnatural.

Natural:

• Profesorica je trepnula...

Unnatural here:

• Profesorica je ona trepnula...

Croatian often leaves pronouns out unless you want emphasis or contrast.

The commas separate a series of actions:

• trepnula, klimnula i rekla

This is like English:

• She blinked, nodded, and said...

Croatian punctuation here is very straightforward: the commas help list the actions clearly in sequence.

Grammatically, you could rearrange parts of the sentence, but it would change the flow and emphasis.

The original order:

• Profesorica je trepnula, klimnula i rekla da možemo početi s testom.

suggests a natural sequence:

1. she blinked
2. she nodded
3. she said we could start

If you move rekla earlier, the sentence feels different and less natural for this context. Croatian word order is flexible, but not all orders sound equally natural.

All three are perfective here:

• trepnuti = perfective
• klimnuti = perfective
• reći = perfective

That makes sense because each action is seen as a completed event:

• one blink
• one nod
• one statement

Croatian often uses perfective verbs for short, completed actions in a narrative like this.