Obojek je červený.

The collar is red.

Breakdown of Obojek je červený.

• být: to be
• červený: red
• obojek: the collar

Questions & Answers about Obojek je červený.

What does each word do in Obojek je červený?

• obojek = collar
• je = is (3rd person singular of být, to be)
• červený = red

Grammatically:

• obojek is the subject.
• je is the verb.
• červený is a predicate adjective, describing the subject after to be.

Why is červený ending in -ý?

Because it has to agree with obojek in gender, number, and case.

Here:

• obojek is masculine singular
• the sentence is in the nominative
• so the adjective takes the matching form červený

This is one of the most important features of Czech: adjectives change their endings depending on the noun they describe.

What gender is obojek?