紐がほどけないから切っていい？

N3 紐 himo string, cord N5 ない nai there isn't, doesn't have N5 いい ii good, nice, okay

N4 切 setsu, sai / ki.ru, -ki.ru, ki.ri, -ki.ri, -gi.ri, ki.reru, -ki.reru, ki.re, -ki.re, -gi.re cut, cutoff, be sharp

N4 〜ほど hodo Indicates degree, extent, comparison, or intensity, attaches to verb, adjective, or noun, means as much as or to the point that N5 〜から kara Indicates cause or reason, equivalent to because or since, connects two clauses explaining reason N5 〜ている te iru Indicates ongoing action, continuous state, repeated habit, or resulting condition depending on context N5 〜が ga Marks the grammatical subject, highlights new information, can also show slight contrast in some sentences N5 〜か ka Marks a question, alternative, or uncertainty, appears at the sentence end or between options