Questions & Answers about Subite ekpluvis, kaj granda ŝtormo venis de la maro.
The prefix ek- usually shows the beginning of an action, often with a sudden feel.
So:
- pluvis = it rained / it was raining
- ekpluvis = it began to rain / it suddenly started raining
That fits very well with subite, because both suggest a sudden change.
You will see ek- with many verbs, for example:
- ekkuris = started running
- ekparolis = started speaking
- ekridis = burst out laughing / started laughing
In Esperanto, weather verbs are often used without a subject. English needs a dummy subject, as in it is raining, but Esperanto does not.
So:
- Pluvas = it is raining
- Neĝas = it is snowing
- Ekpluvis = it began to rain
There is no need to add a separate word for it.
Because subite is an adverb, and adverbs in Esperanto end in -e.
Here it modifies the whole event, meaning suddenly.