Ichidan verb, Transitive verbto lay (something) face down; to place upside down; to turn over (face down) · to point downwards (one's eyes, head, etc.); to cast down (one's eyes) · to lay (oneself) face down; to lie face down; to lie flat (on one's stomach); to throw (oneself) to the ground

Godan verb with 'su' ending, Intransitive verbto lie down (in bed); to retire (to bed); to become bedridden (with an illness)

Vs C, Intransitive verbto lie down (in bed); to take to one's bed

V4s, Intransitive verbto lie down