Vaikka minua väsyttää, teen kotitehtävän loppuun.

Here vaikka means although / even though. It introduces a contrasting idea:

Vaikka minua väsyttää = Even though I’m tired
teen kotitehtävän loppuun = I’ll finish the homework

So the whole sentence means that tiredness does not stop the action.

Finnish often expresses feelings and physical states with verbs that work differently from English.

Väsyttää literally works more like something is making me tired or I feel tired than I am tired.

So:

• Minua väsyttää = I’m tired / I feel tired
• literally: me tires

This pattern is very common in Finnish. Similar verbs include:

• Minua pelottaa = I’m scared
• Minua janottaa = I’m thirsty
• Minua naurattaa = I feel like laughing / something makes me laugh

Because väsyttää takes the experiencer in the partitive case.

So:

• minä = I (basic subject form)
• minua = partitive form of minä

With verbs like väsyttää, the person who feels the sensation is not expressed like a normal subject in English. That is why Finnish says:

• Minua väsyttää not
• Minä väsyttää

This is just a pattern you need to learn with certain verbs.

Yes, absolutely. That is also correct.

The difference is mainly in style and nuance:

• Minua väsyttää = I feel tired / sleepiness is affecting me right now
• Olen väsynyt = I am tired

The version with väsyttää can feel a bit more like an immediate physical sensation. The version with väsynyt uses the adjective väsynyt (tired).

Both are natural Finnish.

Finnish usually leaves out subject pronouns when they are clear from the verb ending.

• teen = I do / I will do
• the ending -n already shows first person singular

So minä teen is possible, but just teen is more natural unless you want emphasis.

For example:

• Teen kotitehtävän loppuun = normal
• Minä teen kotitehtävän loppuun = more emphatic, like I will finish it

Formally, teen is present tense.

However, Finnish often uses the present tense for future meaning when the context makes it clear. In this sentence, English might translate it as:

• I finish the homework
• I will finish the homework
• I’m going to finish the homework

All of those can fit depending on context. Finnish usually does not need a separate future tense.

Because the sentence presents the homework as a completed whole.

With verbs like tehdä, Finnish often distinguishes between:

• a total object: the action is completed or aimed at a complete result
• a partitive object: the action is ongoing, incomplete, or indefinite

Here:

• kotitehtävän = total object, the homework assignment / the homework as a whole
• kotitehtävää = partitive, more like homework in an ongoing or incomplete sense

Compare:

• Teen kotitehtävän loppuun = I’ll finish the homework
• Teen kotitehtävää = I’m doing homework

In the singular, the total object often looks like the genitive form, which is why you see -n.

Loppuun means to the end or completely, and with many verbs it gives the idea of finishing something.

So:

• teen kotitehtävän = I do the homework
• teen kotitehtävän loppuun = I finish the homework / I do the homework to the end

It emphasizes completion. Finnish often uses words like this to make the result especially clear.

Because Vaikka minua väsyttää is a subordinate clause, and it comes before the main clause.

Structure:

• Vaikka minua väsyttää, = subordinate clause
• teen kotitehtävän loppuun. = main clause

Finnish uses a comma here just as English usually does in a sentence like:

Although I’m tired, I’ll finish the homework.

The given word order is the most neutral and natural one.

Finnish word order is somewhat flexible, but changing it can change emphasis.

Neutral version:

• Vaikka minua väsyttää, teen kotitehtävän loppuun.

You could also say:

• Teen kotitehtävän loppuun, vaikka minua väsyttää.

That means the same thing overall, but now the main statement comes first and the although-clause comes after it. The choice depends on what you want to emphasize first.

Usually it suggests one specific homework task or the homework as a complete unit.

If the context is schoolwork in general, Finnish often uses other forms, for example:

• Teen kotitehtäviä = I do homework / I do homework assignments
• Teen kotitehtävää = I’m doing homework

But in your sentence, kotitehtävän loppuun strongly suggests a specific piece of homework that will be completed.