Οι ρίζες σαπίζουν από το πολύ νερό.

The roots rot from too much water.

Breakdown of Οι ρίζες σαπίζουν από το πολύ νερό.

• το νερό: the water
• πολύ: very
• από: from
• η ρίζα: root

Questions & Answers about Οι ρίζες σαπίζουν από το πολύ νερό.

Why does the sentence start with Οι ρίζες?

Οι ρίζες means the roots.

• οι = the for plural nouns
• ρίζες = roots

Here, ρίζες is a feminine plural noun, and it is the subject of the sentence, so it appears in the nominative plural.

Singular forms:

• η ρίζα = the root
• οι ρίζες = the roots

Why is the verb σαπίζουν and not a singular form?

Because the subject is plural: οι ρίζες = the roots.

So the verb must also be plural:

• η ρίζα σαπίζει = the root rots / is rotting
• οι ρίζες σαπίζουν = the roots rot / are rotting

So σαπίζουν is the 3rd person plural form.

What form is σαπίζουν exactly?