Breakdown of Кто-то решил лечь на пол.
на
on, at / by (transport) / to (a place) / to (in answer to)
пол
floor
решить
to decide (perfective)
кто-то
someone
Questions & Answers about Кто-то решил лечь на пол.
Why do we use the Accusative case in на пол instead of the Prepositional на полу?
Because the verb лечь (to lie down) involves movement towards a destination to assume a new position. We use на + Accusative to mean 'onto the floor'. If someone was already lying there and not moving, you would use the static verb лежать with the Prepositional case: лежать на полу.
лечь is the perfective verb for 'to lie down'. Why does it end in -чь?
While most Russian verbs end in -ть, a few older verbs end in -чь, like лечь and мочь (to be able to). Since лечь is irregular, it is helpful to memorize its past tense forms: лёг (masculine), легла (feminine), and легли (plural).
Why is the verb решил masculine, if кто-то (someone) could be a woman?
Could we use кто-нибудь instead of кто-то in this sentence?