kostten

Kostten is the past tense plural form of the Dutch verb kosten, which means to cost. It is used when the subject of the sentence is plural. The corresponding singular past tense form is kostte, as in De reis kostte honderd euro. The present tense forms are kost for singular subjects and kosten for plural subjects, for example Het kost tien euro and De producten kosten tien euro.

The past participle of kosten is gekost, which is used with perfect tenses, such as Het heeft veel gekost or De prijs heeft veel gekost. This form is typically seen in compound sentences where a past action with a resulting cost is described.

Usage notes and examples:

- Singular past: De reis kostte honderd euro.

- Plural past: De reizen kostten honderd euro.

- Present tense: Het kost tien euro. De producten kosten tien euro.

- Perfect tense: Het heeft veel gekost.

Kostten follows standard Dutch conjugation patterns for regular verbs in the past tense, with the -ten ending added to the stem kosten for plural subjects. The form kostten is common in both written and spoken Dutch when referring to costs that apply to multiple items, events, or entities.