Halo Nikma…kamu bisa aja hahaha biasa-biasa aja saya xD
Iya memang then sering ketika digunakan sama if, dihilangkan Nikma

used to indicate what must be true or what must or should happen if something else is true or happens
If you were there, then you must have seen him.
If it rains, then we can’t go.
“It’s raining.” “Then we can’t go.”
“He confessed.” “The case is closed, then.”
If you want it, then take it. = Take it, then, if you want it.
Hurry, then, if you want to catch the bus.
What if there should be a fire? What then? [=what will happen then?]

◊ Then is often omitted following if.
If it rains, (then) we can’t go. http://www.learnersdictionary.com/definition/then

bisa aja Nikma main clausenya gak pake modal, contohnya kayak di zero conditional ya (if + simple present, simple present): If we burn paper, it becomes ash atau kayak contoh di atas, if + simple present, imperative (If you want it, then take it.)

Semoga membantu 🙂

Elemen-elemen yang dihubungkan correlative conjunction itu harus paralel Rahmi, seperti contoh itu, sesama infinitive dihubungkannya.

Coba lihat: https://www.wordsmile.com/pengertian-aturan-contoh-kalimat-parallel-structure-parallelism

I’m confused whether to live in Jakarta or to live in Bandung.
(Saya bingung apakah tinggal di Jakarta atau tinggal di Bandung.)

to live nya kita ulang lagi ? ga boleh to live in jakarta or in bandung ?