öğrenciler

The plural ending for a subject is usually -lar or -ler, depending on the principles of vowel harmony.

[See MORE ABOUT GRAMMAR: Plural Nouns (Gr 4.3) at the end of the unit]

Note that the finite verb ending changes when the object is 3rd person plural. (The "they" form).

[See MORE ABOUT GRAMMAR: Vowel Harmony of Suffixes and Particles (Gr 2.3) at the end of the unit]