Answer:
イ+八+一 Katakana "I" or The "Ninben" radical - person / HACHI, ya(ttsu), ya(tsu), ya, yo - eight / ICHI, ITSU, hito(tsu) - one
シ+口+月 Katakana "Shi" or The "Sanzui" radical - water / KOU, kuchi - mouth / GETSU, GATSU, tsuki - moon, month
キ+、+用 Katakana "Ki" or The "Tehen" radical - hand / Comma / YOU, mochi(iru) - use, business
一+及 ICHI, ITSU, hito(tsu) - one / KYUU, oyo(bu), oyo(bosu) - reach, amount to, match, equal
⻖+口+⽱ The "Kozatohen" radical - hill, mound / KOU, kuchi - mouth / The "Juunoashi" radical - footprint
Add 十 (JUU, tou, to - ten) to give them a "plus" attitude!
体 TAI, TEI, karada - body
湖 KO, mizuumi - lake
捕 HO, to(ru), to(raeru), tsuka(maeru) - catch, grasp, be caught
扱 atsuka(u) - handle
隅 GUU, sumi - corner, nook