V plain / i-adj / noun + である + 限り

Nghĩa: as long as / to the extent that / as far as
Cấu trúc (Formation): V plain non-past + 限り; i-adj + 限り; noun + である + 限り; na-adj + な + 限り. Negative: V ない + 限り ('unless').
Độ trang trọng: neutral