Meaning: to have done something before
Tag: こと expressions
JLPT N1 Grammar: に限ったことではない (ni kagitta koto dewa nai) Meaning
Meaning: not limited to only ~
JLPT N1 Grammar: のやら / ものやら / ことやら (no yara / mono yara / koto yara) Meaning
Meaning: I wonder...; unsure; I don’t know ~
JLPT N1 Grammar: たことにする / たことになる (ta koto ni shite / ta koto ni naru) Meaning
Meaning: pretend to; see things as untrue; contrary to the truth ~
Meaning: It has been decided that..; it turns out that..
Meaning: to decide on