Tinc un gat.

Tinc is the 1st person singular form of the verb tenir, which means to have.

So:

• tenir = to have
• tinc = I have

Catalan changes the verb form depending on the subject, just like English changes have to has in some cases.

Catalan often leaves out subject pronouns when they are not needed, because the verb ending already shows who is doing the action.

So:

• Tinc un gat. = I have a cat.
• Jo tinc un gat. also means I have a cat, but jo is usually only added for emphasis or contrast.

This is very common in Catalan.

Un means a or an.

In Tinc un gat:

• un = a
• gat = cat

Catalan uses un before a masculine singular noun.

Compare:

• un gat = a male cat / a cat
• una gata = a female cat

Gat is the masculine form of cat, and gata is the feminine form.

So:

• un gat = a male cat / a cat
• una gata = a female cat

If the sex of the animal is unknown or not important, learners will often see the masculine form used as the basic dictionary form, though in real life speakers may choose whichever is appropriate.

This is the normal, basic word order in Catalan:

• verb + object here, with the subject omitted

So Tinc un gat is the most natural standard way to say it.

You could also say:

• Jo tinc un gat for emphasis
• Un gat tinc is possible only in special contexts, but it is not the neutral everyday order

For beginners, Tinc un gat is the pattern to remember.

A simple approximate pronunciation is:

teenk oon gaht

A few notes:

• tinc: the i is like the vowel in machine, not like English tin
• un: pronounced with a short u sound that is not exactly like English oon, but that approximation helps at first
• gat: the g is a hard g, like in go

Depending on dialect, pronunciation can vary a little.

Catalan expresses possession with the verb tenir = to have, just like English.

So:

• Tinc un gat literally follows the same idea as English: I have a cat

This is different from some other languages that use a structure more like To me there is a cat. Catalan does not do that in this sentence.

To say I don’t have a cat, you usually put no before the verb:

• No tinc un gat

Very often, especially in natural speech, Catalan may use:

• No tinc cap gat = I don’t have any cat / I have no cat

This is often more idiomatic than simply negating un gat.

You can make it a question mainly with intonation in speech:

• Tens un gat? = Do you have a cat?

For I have a cat?, if you were repeating in surprise, you could say:

• Tinc un gat?

Catalan does not usually need an extra word like English do.

The dictionary form is tenir.

In the present tense:

• tinc = I have
• tens = you have
• té = he/she/it has
• tenim = we have
• teniu = you all / you formal plural have
• tenen = they have

So tinc un gat uses the present tense.

Yes. Tinc un gat is a completely natural everyday sentence.

It is short, simple, and idiomatic. A Catalan speaker would easily use it in normal conversation to say that they have a cat.

Yes, in some contexts gat can have other meanings, just as cat can in English, but in a basic sentence like Tinc un gat, the normal meaning is simply cat, the animal.

For a beginner, that is the meaning to focus on.