"They see the animal."
Translation:De ser djuret.
Is it "djuret" with -t instead of "djuren" with -n, because it's an ett-word?
"Se" is the infinitive form: att se - to see
"Ser" is the present tense: jag/du/han/hon/den/det/vi/ni/de ser
It is a strong/irregular verb:
jag ser - jag såg - jag har sett (I see - I saw - I have seen)