いつまでもここにいる

N3 いつまでも itsu made mo forever, indefinitely, for a long time N5 ここ koko here

N5 〜まで made Indicates final limit in time or space, equivalent to until or up to, shows maximum endpoint N5 〜でも demo Indicates representative example, approximate suggestion, mild surprise or concession depending on context N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜で de Indicates where an action happens, means used, tool, cause, or material depending on context N5 〜も mo Means also, adds another similar item, often replaces particles such as wa ga or o