Lähetän oikaisuvaatimuksen ennen määräaikaa.

Lähetän is the 1st person singular present tense form of the verb lähettää, which means to send.

So:

• lähettää = to send
• lähetän = I send

In Finnish, the present tense often also covers what English would express with will. So depending on context, lähetän can mean:

• I send
• I am sending
• I will send

In this sentence, it is most naturally understood as I will send or I’m sending before the deadline.

Finnish often omits the subject pronoun when it is clear from the verb ending.

Here, lähetän already tells you the subject is minä (I), because the ending -n marks 1st person singular.

So both of these are possible:

• Lähetän oikaisuvaatimuksen ennen määräaikaa.
• Minä lähetän oikaisuvaatimuksen ennen määräaikaa.

The version without minä is completely normal and usually more natural unless you want to stress I specifically.

Because it is the object of the verb, and here it is a total object.

The basic dictionary form is:

• oikaisuvaatimus

In the sentence, it becomes:

• oikaisuvaatimuksen

This -n ending is very common for a singular total object in Finnish. It often looks the same as the genitive form.

Here the idea is that the speaker is sending the whole document/request, as a completed item, not just doing the action partially or indefinitely.

So:

• lähetän oikaisuvaatimuksen = I send / will send the appeal/request in full

This is different from a partitive object, which would suggest something incomplete, ongoing, or indefinite in a different kind of context.

Oikaisuvaatimus is a fairly formal administrative/legal word. It usually means something like:

• request for rectification
• appeal for correction
• claim for review/correction

It is a compound word:

• oikaisu = correction, rectification
• vaatimus = demand, claim, request

So literally it is something like a demand/request for correction.

This is the kind of word you often see in official Finnish, especially in public administration.

Because the preposition ennen (before) requires the partitive case.

So:

• määräaika = deadline, time limit
• ennen määräaikaa = before the deadline

This is just a rule of Finnish grammar:

• ennen + partitive

Other examples:

• ennen kokousta = before the meeting
• ennen iltaa = before the evening
• ennen joulua = before Christmas

So even if an English speaker expects something more like before the deadline with no visible case change, Finnish requires määräaikaa here.

Määräaika means deadline or time limit.

It is another compound word:

• määrä = amount, fixed quantity, specification
• aika = time

Together, the word means a fixed time limit or deadline.

So ennen määräaikaa is literally something like before the fixed time limit.

Grammatically, it is present tense.

However, Finnish often uses the present tense to talk about the future when the context makes the future meaning clear.

So:

• Lähetän oikaisuvaatimuksen ennen määräaikaa.

can naturally mean:

• I send the request before the deadline
• I will send the request before the deadline

Because before the deadline points to a future action, English will often translate it with will.

Finnish does not usually need a separate future tense form.

The sentence has a very normal Finnish word order:

• Lähetän = verb
• oikaisuvaatimuksen = object
• ennen määräaikaa = time expression

So the structure is basically:

• [Verb] [Object] [Time phrase]

Since the subject minä is omitted, the sentence begins with the verb.

You could also say:

• Minä lähetän oikaisuvaatimuksen ennen määräaikaa.

And for emphasis, Finnish can move things around:

• Ennen määräaikaa lähetän oikaisuvaatimuksen.

That version puts more focus on before the deadline.

So the original order is straightforward and neutral.

Yes. Finnish uses compound words very often, much more than English does.

So where English might write something like:

• request for rectification

Finnish often builds one longer word:

• oikaisuvaatimus

The same is true for:

• määräaika = deadline
• henkilökortti = identity card
• verkkopankkitunnus = online banking ID

A good habit for learners is to try to spot the smaller parts inside a long Finnish word.

Possibly, depending on context.

The basic meaning of lähettää is to send, but in real-life official contexts, English may use different verbs:

• send
• submit
• file
• mail

If this is about an official document, English might naturally say:

• I will submit the request for rectification before the deadline.

But the Finnish verb itself is still simply lähettää = to send.

So the best translation depends on the situation, not just the dictionary meaning of the verb.

You would use the Finnish negative verb:

• En lähetä oikaisuvaatimusta ennen määräaikaa.

Notice two important changes:

1. lähetän becomes lähetä after the negative verb en
2. The object usually changes from the total object to the partitive:
   • oikaisuvaatimuksen → oikaisuvaatimusta

So:

• Lähetän oikaisuvaatimuksen = I will send the request
• En lähetä oikaisuvaatimusta = I am not sending / I will not send the request

This is a very common Finnish pattern: negative sentences often take the partitive object.

A rough pronunciation guide for an English speaker:

• Lähetän ≈ LEH-heh-tan
  
  • ä is like the vowel in British cat, but more open and clear
• oikaisuvaatimuksen ≈ OY-kai-su-vaa-ti-muk-sen
• ennen ≈ EN-nen
• määräaikaa ≈ MAA-ra-ai-kaa, with ä sounds instead of English a

A few useful pronunciation points:

• Finnish stress is usually on the first syllable
• Double vowels are held longer:
  • aa is longer than a
• Double consonants are also pronounced longer
• Finnish pronunciation is usually very regular compared with English spelling

You do not need to reduce vowels the way English often does; Finnish vowels are usually pronounced clearly.