Learn Swedish: Jag har redan skickat mejlet. - I have already sent the email.

It is the supinum form of the verb skicka (to send). Because skicka is a Group 1 verb, we form the supinum by adding -t to the base, giving us -at. We combine this with har to create the present perfect tense.

Why is the word redan placed between har and skickat?

In a normal Swedish sentence, short adverbs like redan (already) and inte (not) are placed right after the first verb. Since har is the first verb here, redan jumps in before the second verb skickat.

How does mejlet tell us that the Swedish word for email is an ett-word?

The ending -et acts as the word for 'the' when attached to ett-words. If email were an en-word, the definite form would be mejlen. Because we see mejlet, we know the base word is ett mejl.

Could I add a specific time like igår (yesterday) to this exact sentence structure?