Ég er mjög þreyttur í kvöld.

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Breakdown of Ég er mjög þreyttur í kvöld.

• vera: to be
• mjög: very
• í kvöld: tonight

Questions & Answers about Ég er mjög þreyttur í kvöld.

Why does þreyttur end in -ur here?

In Icelandic, adjectives change their endings to agree with the gender, number, and case of the noun (or pronoun) they describe.

• Þreyttur is the masculine, singular, nominative form of the adjective þreyttur (tired).
• The subject ég (I) doesn’t show gender itself, but the adjective agrees with the speaker’s gender.
  • A man would say: Ég er mjög þreyttur í kvöld.
  • A woman would say: Ég er mjög þreytt í kvöld.

So -ur here marks that the speaker is (grammatically) masculine.

How would the sentence change if the speaker is female?

Only the adjective changes; everything else stays the same:

• Masculine speaker: Ég er mjög þreyttur í kvöld.
• Feminine speaker: Ég er mjög þreytt í kvöld.

Here þreytt is the feminine (and also neuter) singular nominative form of the adjective.

If a group was speaking:

• We (mixed group or all men): Við erum mjög þreyttir í kvöld.
• We (all women): Við erum mjög þreyttar í kvöld.

What does í kvöld literally mean, and why is it translated as “tonight/this evening”?