Usages of kalau
Rute alternatif disiapkan kalau cuaca berubah tiba-tiba.
An alternative route is prepared if the weather changes suddenly.
Saya bisa belajar lebih cepat kalau saya minum kopi di pagi hari.
I can learn faster if I drink coffee in the morning.
Kecuali Anda sakit, seharusnya Anda ikut latihan singkat; kalau butuh bantuan, beri kabar.
Unless you are ill, you should join the short practice; if you need help, let me know.
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