[denakerebanaranai (P); denakerebaikenai ; denakerebanaranu](exp) (See である, なければならない) having to be; must be; should be; ought to be; (P)[Add to Longdo]
[ないといけない, naitoikenai](exp, adj-i) (1) (uk) (See 無きゃいけない) (after negative base of verb) have to (verb); must (verb); (2) (esp. 無いといけない) is indispensable; absolutely necessary; (P)[Add to Longdo]