Η προπονήτρια ξέρει ότι μια ήττα δεν αλλάζει όλο το πρωτάθλημα.

The female coach knows that one defeat does not change the whole championship.

Breakdown of Η προπονήτρια ξέρει ότι μια ήττα δεν αλλάζει όλο το πρωτάθλημα.

• δεν: not
• ξέρω: to know
• ότι: that
• μία: one

Questions & Answers about Η προπονήτρια ξέρει ότι μια ήττα δεν αλλάζει όλο το πρωτάθλημα.

Why is προπονήτρια feminine, and what does Η mean here?

Η προπονήτρια means the (female) coach.

• η is the feminine singular definite article, meaning the
• προπονήτρια is a feminine noun meaning coach or trainer

Greek nouns have grammatical gender, and this noun is specifically feminine. If the coach were male, you would usually say ο προπονητής.

So:

• η προπονήτρια = the female coach
• ο προπονητής = the male coach

What form is ξέρει, and why is it used here?

ξέρει is the 3rd person singular present tense of ξέρω, which means to know.

So:

• ξέρω = I know
• ξέρεις = you know
• ξέρει = he/she/it knows

Since the subject is η προπονήτρια (the coach), Greek uses ξέρει = she knows.

A useful note: ξέρω often means know in the sense of be aware of / know a fact. In this sentence, that fits perfectly: the coach knows that something is true.

What does ότι do in this sentence?