I'm confused with unknown for me verb form, which I faced on two sentences in a row. It looks like Verb (nai form) + れ or passive voice without ます/る.
The examples with the full context:
雲は流され 慌てふためき
風が招かれ 吹き荒れる
Can someone explain me what form is this, when does it used and what is the meaning of it? I tried to google this, but found nothing Т_т
Moreover, why there are different particles (は/が) on those two cases?