My ma sê daar is 'n goeie rede om vroeg te vertrek.

Yes. In Afrikaans, my can mean both:

• my as a possessive: my ma = my mom
• me as an object pronoun: Sy sien my = She sees me

So in My ma sê..., my is the possessive form.

Also, ma is a very common, natural word for mom/mother in everyday speech.

Sê means say/says.

In this sentence, My ma sê... means My mom says...

The circumflex on ê helps show pronunciation and distinguishes it from other forms. In Afrikaans spelling, accents are sometimes important parts of the written word. So you should learn sê with the accent, not as plain se.

Yes. Daar is is the normal way to say there is or there are in an existential sense.

So:

• Daar is 'n goeie rede = There is a good reason

Here, daar does not mean a physical place like over there. It is being used the way English uses there in there is.

This is very common in Afrikaans:

• Daar is 'n probleem = There is a problem
• Daar is baie mense = There are many people

'n is the Afrikaans indefinite article, equivalent to English a/an.

So:

• 'n goeie rede = a good reason

A few important things about 'n:

• It is always written with an apostrophe.
• It is normally not stressed in pronunciation.
• Even at the start of a sentence, the 'n itself stays lowercase. If a sentence begins with it, the next word is often capitalized instead.

Example:

• 'n Man staan buite.

Do not confuse 'n with een, which means one.

Because goeie is the inflected form of goed before many nouns.

• goed = good
• 'n goeie rede = a good reason

This is a very common Afrikaans pattern: adjectives often take an -e ending before a noun.

Examples:

• 'n groot huis = a big house
• 'n mooi dag = a nice day
• 'n goeie idee = a good idea

The adjective goed is a bit special, because its form before a noun becomes goeie, not just goede in normal modern usage.

It is an infinitive phrase meaning to leave early.

Breakdown:

• om = to
• vroeg = early
• te vertrek = to depart / to leave

Together:

• 'n goeie rede om vroeg te vertrek = a good reason to leave early

Afrikaans often uses om ... te with infinitives, similar to English to ....

Afrikaans often uses the pattern om ... te + infinitive.

So:

• om te vertrek = to leave

If there is another word in between, it still stays in the pattern:

• om vroeg te vertrek = to leave early

This is a normal Afrikaans structure after many nouns, adjectives, and verbs.

For example:

• Dit is belangrik om te luister = It is important to listen
• Hy probeer om te help = He tries to help

So in your sentence, rede om vroeg te vertrek literally has the structure reason to leave early.

Because vroeg is an adverb modifying the verb vertrek.

• vroeg vertrek = leave early

In the infinitive structure, the adverb usually comes before the infinitive verb:

• om vroeg te vertrek

This is very natural Afrikaans word order.

Both can relate to leaving, but they are not always the same.

• gaan usually means go
• vertrek usually means depart / leave

In this sentence, vertrek sounds a little more specifically about setting off or leaving a place, often in a planned or deliberate sense.

So:

• vroeg te vertrek = to depart early / to leave early

Using gaan would shift the meaning slightly more toward go rather than depart.

Yes, it is very natural.

Structure:

• My ma sê = main clause
• daar is 'n goeie rede = content clause
• om vroeg te vertrek = infinitive phrase modifying rede

So the sentence is built like this:

My mom says + there is a good reason + to leave early

Afrikaans often keeps this kind of straightforward word order in statements like this.

Yes.

• ma = mom, everyday and informal/neutral
• moeder = mother, more formal
• mamma = mommy/mommy-like, often more affectionate or childlike depending on context

So you could say:

• My moeder sê daar is 'n goeie rede om vroeg te vertrek

But that sounds more formal than the original. My ma sê... is very natural in ordinary speech.