What “Soon come” means
Soon come means "I'll be there shortly" or "I'll be right back". It's usually said with mi in front: "Mi soon come." Grammatically, soon sits straight before the verb to show the near future.
Examples
Mi soon come
I'll be there shortly.
Mi soon come
I'll be right back
How to use it
Used when stepping out, running late or promising to arrive. The timing is famously flexible, and Jamaicans joke that it could mean five minutes or five hours, so read the situation.