certaines

/sɛʁ.tɛn/certain
1.
determiner | pronounfemininePlur

some

certain (ones)

Certaines personnes ne comprennent jamais rien.

Some people never understand anything.

2.
adjectivefemininePlur

sure

certain

convinced

Elles sont certaines de gagner le match.

They are sure they will win the match.