Questions & Answers about Τα παιδιά πιστεύουν στη μαγεία.
Because παιδί is a neuter noun in Greek.
Greek articles must agree with the noun in gender, number, and case:
- το παιδί = the child
- τα παιδιά = the children
So οι would be used for masculine or feminine plural, not neuter plural.
The singular is παιδί.
So:
- το παιδί = the child
- τα παιδιά = the children
This is a very common noun, and learners usually just memorize it as a pair:
- παιδί / παιδιά
Πιστεύουν is the 3rd person plural form of πιστεύω in the present tense.
Since τα παιδιά is plural, the verb is plural too:
- το παιδί πιστεύει = the child believes
- τα παιδιά πιστεύουν = the children believe
You may also sometimes see πιστεύουνε, which is a longer colloquial variant of the same form.