I continue to pull sentences from here: https://web.archive.org/web/20130307020009/http://fiziwig.com/conlang/syntax_tests.html
The rain came down.
(came down rain)
The kitten is playing in the rain.
(playing rain-in kitten)
The rain has stopped.
(stopped rain).

fetha, verb, to rain
fetham, noun, rain
felashef, noun, kitten (youth-cat)

dithasha, verb, to descend
hetheta, verb, to play
thea, in
ithtutha, verb, to stopped

Past tense, third person singular is still -iln

The rain came down, Dithashiln fetham

Present tense third person singular is -art

The kitten is playing in the rain, Hethetart fetham-thea felashef

-olp is third person singular present perfect.

The rain has stopped, Ithtutholp fetham.

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I continue to pull sentences from here: https://web.archive.org/web/20130307020009/http://fiziwig.com/conlang/syntax_tests.html

It’s raining.
(is raining it)

The rain came down.
(came down raining)
The kitten is playing in the rain.
(playing in rain kitten)
The rain has stopped.
(stopped rain). (these 3 later)

fetha, verb, to rain
-am, turning a verb into a noun
fetham, noun, rain

THIS is the interesting part, because both the English and the French for “it rains” use a general pronoun. Il pleut, It/he present-tense-rain
Spanish skips the pronoun, as they often do:
está lloviendo Formal second-person singular to be, present-tense-rain

BUT I think there should be a word indicating the environment is doing something. SO.
fut, here-now place (“it”)

Edited to add: Syntactic Expletive and Impersonal verbs seem to cover this phenomenon.

Present tense third person singular is -art

Present tense, surrounding:
-artfea

It’s raining, Fethartfea fut.

This entry was originally posted at http://aldersprig.dreamwidth.org/1053890.html. You can comment here or there.