Kalimat negative dan introgative dari kaliat the students study hard

Kalimatnya memang gak ada to be-nya?

Students aren't study hard.
Are students study hard?

(/◕ヮ◕)/

(+) The students study hard
(-) The students don't study hard
(?) Do the student study hard

ini termasuk dalam simple present tense ya, jadi pattern nya S+V1+O/C.

semoga membantu##