не покинет

will not leave

→ не
phrase Uncommon #18,228
will not leave Used with a third-person singular subject: “he/she/it will not leave.” Depending on context, покинуть can also mean “abandon.” Other forms include не покину (“I will not leave”) and не покинем (“we will not leave”).
RU: Он никогда не покинет свою семью.
EN: He will never abandon his family.

Он никогда её не покинет.

He will never leave her.

Том нас не покинет.

Tom won't leave us.