Learn French: Ces vêtements sont très sales, je vais les jeter. - These clothes are very dirty, I am going to throw them away.

In French, direct object pronouns like les (them) usually go directly before the verb they belong to. When a sentence has a conjugated verb (vais) and an infinitive verb (jeter), the pronoun goes right before the infinitive. So, 'I am going to throw them' becomes je vais les jeter.

Does les change depending on the gender of the clothes?

No. While singular direct object pronouns change based on gender (le for masculine, la for feminine), the plural pronoun les (them) is used for all plural objects, regardless of whether they are masculine or feminine.

Why is there an 's' on the end of sales?

In French, adjectives must match the noun they describe. Because vêtements (clothes) is plural, you have to add an 's' to the adjective sale (dirty) to make it plural too.

Why is it ces vêtements instead of ce vêtements?

Ces is the plural form for 'this' or 'that'. Since vêtements is plural, you must use ces (these/those). It is exactly the same word for both masculine and feminine plural nouns.