Questions & Answers about Þeir drekka mjólk.
This drekka is the present-tense, third-person plural form of drekka (to drink). In Icelandic the plural endings in the present tense are:
• við drekka (we drink)
• þið drekkið (you pl. drink)
• þeir/þær/þau drekka (they drink)
So both við and þeir share the ending -a.
Here mjólk is in the accusative singular (direct object) but for this feminine noun the nominative, accusative, and dative are all mjólk. Its full singular declension is:
• Nominative mjólk
• Accusative mjólk
• Dative mjólk
• Genitive mjólkar
A rough English transcription is THAIR DREK-ka MYOLEK. In IPA roughly Þ is [θ] as in “thin.”
• d + r is [tr].
• ó is [ou], like English “oh.”
• Double consonants (kk) are held slightly longer.
Place the negator ekki immediately after the finite verb:
Þeir drekka ekki mjólk.