す可き[subeki] should do (abbr. of suru+beki)
可き[beki] should (suf. to verbs)
もし可能ならば[moshikanounaraba] if possible
可からず[bekarazu] must not
可愛がる[kawaigaru] to love

可愛らしい[kawairashii] lovely
可圧性[kaatsusei] compressibility
可換群[kakangun] Abelian group
可逆[kagyaku] reversible

可撓[katou] flexible
不撓[futou] unbending
不撓不屈[futoufukutsu] inflexibility
撓垂れる[shinadareru] to droop
撓垂れ掛かる[shinadarekakaru] to lean coquettishly against

撓む[tawamu] to bend
撓み計[tawamikei] deflectometer
撓み[tawami] bend
百折不撓[hyakusetsufutou] indefatigability