pre destined, forseen, predictable, prophesized. inevitable
definite...bound to happen...
Native or indigenous.
Yes, "happen" can take the prefix "re-" to form the word "re-happen," which means to happen again or reoccur.
The word "predictable" contains a suffix "able" that means likely to happen.
The root word of "prob" is "probable," which means likely to happen or to be true.
The word certain means that it is going to happen; it is 100% likely; a sure thing.
definite...bound to happen...
For something to be certain means that something will absolutely happen.
The word determine means "causing something to happen in a certain way". It also means "to ascertain or establish exactly, usually as a result of research or calculation."
It means to state that a certain thing will happen in the future.
Occur
Imminent
"Observe" means to watch something happen.
sure
"REOCCUR"
It means the event is certain to happen.
bale