が来るよ

… is coming

→ が
phrase Common #7,734
… is coming The subject is marked by が; よ adds emphasis or presents the information to the listener. The verb may change form depending on tense and politeness.
JA: もうすぐバスが来るよ。
EN: The bus is coming soon.

マガーが来るよ…

Maga is coming...

— तुम्बाड (2018)

寝ないと…ヒランが来るよ

You’d better go to sleep… Hiran’s coming.

— तुम्बाड (2018)

おばあさん寝ないとハスターが来るよ!

Grandma, if you don’t go to sleep, Hastur will come!

— तुम्बाड (2018)

その時はこう言うのよ…「寝ないとハスターが来るよ!」

That’s when you say… “If you don’t go to sleep, Hastur will come!”

— तुम्बाड (2018)

寝ないとハブバッドが来るよ

If you don't go to sleep, Hubbad will come.

— तुम्बाड (2018)

寝ないとハスターが来るよ

If you don't go to sleep, Hastur will come.

— तुम्बाड (2018)

お父さん寝なさい…寝ないとハスターが来るよ!

Daddy, go to sleep… If you don’t, Hastur will come!

— तुम्बाड (2018)

寝ないと…ハアティが来るよ

If you don't go to sleep... Haati will come.

— तुम्बाड (2018)

電車が来るよ!

The train is coming!

ハティーが来るよ…

Hattie’s coming…

— तुम्बाड (2018)