Profesorica nam ih je danas objasnila jasnije nego jučer, pa sada bolje razumijemo nova pravila.

Profesorica is the subject of the sentence, so it appears in the nominative singular.

• profesorica = the (female) professor / teacher
• Since she is the one doing the action, Croatian uses the nominative here.

Compare:

• Profesorica objašnjava. = The professor is explaining.
• Vidim profesoricu. = I see the professor.
  Here profesoricu is accusative, because she is the object.

Nam means to us or for us.

It is the dative plural form of the pronoun mi / nas (we / us).

In this sentence:

• Profesorica nam ih je objasnila...
• literally: The professor explained them to us...

So nam marks the indirect object: the people receiving the explanation.

Ih is a 3rd person plural pronoun, here meaning them.

In this sentence it is the direct object of objasnila (explained):

• objasniti nešto nekome = to explain something to someone

So:

• nam = to us
• ih = them

Because the sentence later says nova pravila (new rules), a learner may wonder whether ih refers to the same thing. It usually refers back to something already known from context, while nova pravila belongs to the second clause: we now understand the new rules better.

Because Croatian often uses two object pronouns in the same clause:

• nam = indirect object = to us
• ih = direct object = them

So the structure is:

Profesorica nam ih je objasnila
= The professor explained them to us

This is completely normal in Croatian.

This is because nam, ih, and je are all clitics.

Clitics are short unstressed words that usually come in the second position of the clause and follow a fairly fixed internal order.

Here:

• nam = dative clitic
• ih = accusative clitic
• je = auxiliary is/has used to form the past tense

So Croatian naturally gives:

• Profesorica nam ih je danas objasnila...

A learner does not need to memorize every rule immediately, but it is useful to know that these little words often cluster together near the beginning of the clause.

This is the past tense in Croatian.

Croatian commonly forms the past with:

1. the present of biti (to be) as an auxiliary
2. the l-participle

So:

• je = auxiliary, 3rd person singular
• objasnila = past participle form

Together:

• je objasnila = explained

Because the subject is Profesorica (singular feminine), the participle must agree with it:

• masculine singular: objasnio
• feminine singular: objasnila
• neuter singular: objasnilo

The ending -la shows that the speaker is using the feminine singular past participle.

Since profesorica is feminine, the verb agrees with her:

• Profesor je objasnio. = The male professor explained.
• Profesorica je objasnila. = The female professor explained.

This kind of gender agreement in the past tense is very important in Croatian.

The dictionary form is objasniti, which means to explain.

In this sentence, objasnila is the feminine singular past participle derived from objasniti.

A useful pattern:

• infinitive: objasniti
• past masculine: objasnio
• past feminine: objasnila
• past neuter: objasnilo

Also note that objasniti is typically perfective, so it refers to a completed act of explaining.

Jasnije is the comparative adverb of jasno (clearly).

So:

• jasno = clearly
• jasnije = more clearly

In the sentence:

• objasnila jasnije nego jučer
• explained more clearly than yesterday

It is an adverb, not an adjective, because it describes how she explained something.

Bolje is the comparative adverb of dobro (well).

So:

• dobro = well
• bolje = better

In:

• sada bolje razumijemo nova pravila
• we now understand the new rules better

Again, bolje describes the verb razumijemo (we understand), so it functions as an adverb.

They both are comparative adverbs, but they modify different verbs:

• jasnije modifies objasnila
  → she explained more clearly
• bolje modifies razumijemo
  → we understand better

So the sentence has two linked ideas:

1. she explained more clearly
2. as a result, we understand better

Nego is used to introduce a comparison, meaning than.

Here:

• jasnije nego jučer
• more clearly than yesterday

So nego works like English than in comparisons.

Common pattern:

• bolje nego prije = better than before
• brže nego jučer = faster than yesterday

Because jučer (yesterday) is an adverb, not a noun phrase that needs a preposition here.

Croatian often compares directly with time adverbs:

• danas
• jučer
• sutra
• prije

So:

• jasnije nego jučer = more clearly than yesterday

This is just a normal comparison structure.

Pa here means something like so, and so, or therefore.

It links the two clauses:

• Profesorica nam ih je danas objasnila jasnije nego jučer,
• pa sada bolje razumijemo nova pravila.

So the logic is:

• she explained them more clearly today than yesterday,
• so now we understand the new rules better.

In Croatian, pa is a very common connector and can have slightly different shades depending on context.

Razumijemo means we understand.

The first clause is about a completed past action:

• she explained them

The second clause gives the current result:

• now we understand better

So Croatian uses the present tense naturally here:

• sada bolje razumijemo
• now we understand better

The ending -mo marks 1st person plural: we.

So:

• razumijem = I understand
• razumiješ = you understand
• razumije = he/she understands
• razumijemo = we understand

This matches the implied subject we, which English also has in the translation.

Because nova pravila is the direct object of razumijemo, so it is in the accusative plural.

The noun pravilo is neuter. For many neuter nouns, the nominative plural and accusative plural look the same:

• nominative plural: nova pravila
• accusative plural: nova pravila

So even though it is the object, the form stays nova pravila.

By contrast, novih pravila would be a different case form, typically genitive plural.

Here pravila is accusative plural, because it is the direct object of razumijemo.

The full phrase:

• nova pravila = new rules

Since pravilo is a neuter noun, the accusative plural is identical in form to the nominative plural.

They refer to slightly different time ideas:

• danas = today
  This belongs to the action of explaining.
• sada = now
  This refers to the present result: now we understand better.

So the sentence means roughly:

• today, she explained more clearly than yesterday,
• and now, as a result, we understand better.

To some extent, yes. Croatian word order is more flexible than English, but not completely free.

For example, different orders can shift emphasis:

• Profesorica nam ih je danas objasnila...
• Danas nam ih je profesorica objasnila...

However, the clitics (nam, ih, je) usually stay grouped together in their normal position.

So Croatian word order is flexible for emphasis and style, but the short unstressed words still follow special rules.

Not by itself very clearly in the way an English learner might hope.

Ih is a plural pronoun form that can refer to plural nouns of different genders in context. So you usually understand what it refers to from the surrounding conversation, not just from the form alone.

That is why Croatian often relies on context more than English learners expect.

A useful breakdown is:

• Profesorica = subject
• nam = indirect object, to us
• ih = direct object pronoun, them
• je objasnila = past tense verb, explained
• danas = today
• jasnije nego jučer = more clearly than yesterday
• pa = so
• sada = now
• bolje razumijemo = understand better
• nova pravila = new rules

So the sentence is built like this:

[Subject] [to us] [them] [explained] [today] [more clearly than yesterday], so [now] [we understand better] [the new rules].

That is a very typical Croatian sentence pattern with clitics, comparison, and a result clause.