Jag ska skriva klart mejlet innan jag åker hem.

ska + infinitive is the most common way to express a planned or intended future in Swedish: Jag ska skriva… = “I’m going to write / I will write (as a plan).”

• kommer att often sounds more like a prediction or something expected to happen: Jag kommer att skriva… can feel closer to “I will (probably) write…” rather than “I’m going to (because I intend to).”
• Present tense can also refer to the future in Swedish, but it typically needs clear context/time words: Jag skriver klart mejlet innan jag åker hem can work, but ska makes the intention explicit.

skriva klart is a very common pattern meaning to finish writing / to write (something) to completion.
Swedish often uses verb + klart/färdigt to emphasize finishing an action:

• läsa klart = finish reading
• äta upp / äta klart (context-dependent) = finish eating
  So Jag ska skriva klart mejlet focuses on completing the email, not merely writing some of it.

mejlet is definite: the email. It implies a specific email that both speaker and listener can identify (e.g., the one you’re currently working on).
Indefinite would be ett mejl (“an email”), which sounds like any email or a new one:

• Jag ska skriva ett mejl… = I’m going to write an email (not necessarily a particular one already started).
  Swedish very often prefers the definite when the object is known/expected in context.

Yes. mejl is a very common Swedish spelling of the loanword. You may also see:

• mail (common in informal writing)
• e-post (more formal/neutral; literally “e-mail”)
  All are understood, but mejl and e-post are especially common in standard Swedish.

After time conjunctions like innan (“before”), Swedish typically uses present tense to refer to the future, because the time relationship already makes it future-oriented:

• innan jag åker hem = before I go home (later)
  Adding ska is possible, but it adds extra “plan/intention” and can sound heavier:
• innan jag ska åka hem = before I’m going to go home / before I’m supposed to go home
  So the version without ska is usually the natural default.

Both exist, but they differ in nuance:

• gå hem = go home (often implies walking, or is neutral in some contexts)
• åka hem = go home by some means of transport (car, bus, train, etc.), or just “head home” when the method isn’t important
  Many speakers use åka hem very broadly for “go home,” especially if they are not literally walking.

In Swedish, the subject is normally required in subordinate clauses. You can’t omit it the way you sometimes can in English with reduced clauses (“before going home”).
Swedish needs a full clause:

• innan jag åker hem (standard)
  A more “reduced” option would require rephrasing, not simple omission.

It’s a main clause followed by a subordinate clause:

• Main clause: Jag ska skriva klart mejlet (S + auxiliary + infinitive phrase + object)
• Subordinate clause: innan jag åker hem (conjunction + subject + verb + adverb)
  In the subordinate clause, Swedish keeps subject before the verb: innan jag åker…
  If you start the whole sentence with the subordinate clause, Swedish uses V2 word order in the main clause:
• Innan jag åker hem ska jag skriva klart mejlet.
  Notice ska comes before jag there (verb-second rule in the main clause).

hem is used as an adverb of direction (“homewards / home”), so you typically say:

• åka hem, gå hem, komma hem
  No preposition is needed. If you specify the home as a place (the house), Swedish may use a preposition:
• åka hem till mig = go home to my place
• åka till mitt hem is grammatically possible but sounds more formal/unusual; hem is the normal everyday choice.

Not directly in the same structure.

• innan is a conjunction and introduces a clause: innan jag åker hem
• före is usually a preposition/adverb used with a noun phrase or an infinitive phrase:
  • före hemresan = before the trip home
  • före jag åker hem is not standard; you’d use innan there.
    You can rephrase with före like: Jag ska skriva klart mejlet före hemresan (before the trip home).

Often it matches “I’m going to” (intention/plan), but Swedish ska covers both planned future and sometimes simple future depending on context.
So it can be translated naturally as either, but the core idea is: this is something the speaker intends to do.

A few typical ones:

• ska is often pronounced like ska with a reduced vowel, and in fast speech can sound close to ska/ska’ (the spelling stays ska).
• skriva: the sk before r is pronounced [skr] (not “sh”).
• mejlet: stress is usually on the first syllable: MEJ-let.
• åker: the å is like the vowel in “law” (depending on accent), and the k is a normal k sound.