眠(ねむ)い() nemuiとき tokiに ni勉(べん)強(きょう)し()て() benkyoushiteも mo無(む)駄(だ) mudaだ da。 Studying when you're sleepy is a waste of time. Literal Sleepy time [at-に] study [even-ても] waste [copula-だ]. ~ても = 'even if, even when.' Used here to concede that studying happens but claim it's fruitless. 無駄だ ('is a waste') as a noun-predicate. Pragmatic observation. schooleducationlife advice~ても (even if/though)
眠(ねむ)い() nemuiとき tokiに ni勉(べん)強(きょう)し()て() benkyoushiteも mo無(む)駄(だ) mudaだ da。 Studying when you're sleepy is a waste of time. Literal Sleepy time [at-に] study [even-ても] waste [copula-だ]. ~ても = 'even if, even when.' Used here to concede that studying happens but claim it's fruitless. 無駄だ ('is a waste') as a noun-predicate. Pragmatic observation. schooleducationlife advice~ても (even if/though)