Ich arbeite mit meinem Partner.

Because mit always takes the dative case in German.

• mein Partner = nominative form
• meinem Partner = dative form

So after mit, you must use the dative:

• mit meinem Partner
• mit meiner Freundin
• mit dem Lehrer

This is one of the most important things to remember about mit.

The sentence uses two different cases:

• Ich is in the nominative case because it is the subject of the sentence.
• meinem Partner is in the dative case because it comes after mit.

So the structure is:

• Ich = subject
• arbeite = verb
• mit meinem Partner = prepositional phrase with mit
  • dative

Usually yes, but it is better to think of mit as a German preposition that often corresponds to English with.

In this sentence, mit meinem Partner matches English with my partner very closely.

However, prepositions do not always match perfectly between languages, so it is safest to learn:

• mit + dative

rather than assuming it always works exactly like English with in every context.

In a normal German main clause, the finite verb usually comes in second position. This is called the V2 rule.

Here the sentence is:

• Ich = first position
• arbeite = second position
• mit meinem Partner = the rest

So the sentence follows standard German word order.

You could also move another element to the front, but the verb would still stay second:

• Mit meinem Partner arbeite ich.

That sounds more marked or emphatic, but it is still grammatically correct.

arbeite is the first-person singular present tense form of arbeiten.

The present tense forms are:

• ich arbeite
• du arbeitest
• er/sie/es arbeitet
• wir arbeiten
• ihr arbeitet
• sie/Sie arbeiten

So Ich arbeite means I work or I am working, depending on context.

No. Partner can mean different things depending on context.

It can refer to:

• a work partner
• a business partner
• a dance partner
• a romantic partner

In this sentence, the exact meaning depends on the situation. Without context, it could be either a colleague/working partner or someone you are romantically involved with and also work with.

Because Partner is a noun, and all nouns are capitalized in German.

This is a basic rule in German:

• ich = not capitalized in the middle of a sentence
• arbeite = verb, not capitalized
• Partner = noun, so it is capitalized

Other examples:

• das Buch
• die Stadt
• mein Freund

Yes. In many cases, the German present tense covers both ideas.

So Ich arbeite can mean:

• I work
• I am working

The exact meaning depends on context.

For example:

• Ich arbeite jeden Tag. = I work every day.
• Ich arbeite gerade. = I am working right now.

German often uses the simple present where English might use either the simple present or the present continuous.

Yes. That is also correct and can sound a bit more explicit.

• Ich arbeite mit meinem Partner. = I work with my partner.
• Ich arbeite zusammen mit meinem Partner. = I work together with my partner.

The second version emphasizes the idea of working together more clearly.

In everyday German, both are possible, but the shorter sentence is very natural.

You know it from the noun Partner, which is grammatically masculine: der Partner.

Because mit requires the dative, mein changes like this in the masculine singular:

• nominative: mein Partner
• accusative: meinen Partner
• dative: meinem Partner
• genitive: meines Partners

So meinem Partner tells you:

• singular
• masculine
• dative

Yes, absolutely. German Ich arbeite mit meinem Partner can often match either English version:

• I work with my partner
• I am working with my partner

Without extra context, German does not always make that distinction.

If you want to make right now especially clear in German, you can add something like:

• Ich arbeite gerade mit meinem Partner.

Then the meaning is more clearly I am working with my partner right now.