Analyzer
Sentence analysis
8Spans
Sentence
Span Details
彼ら
they; thempronoun
は
topic markergrammar
徹底的
thorough; exhaustive; completena-adjective
な
adnominal form of the copula after a na-adjectivegrammar
調査
investigation; examination; inquiry; surveynoun, suru verb
を
object markergrammar
行っ
perform; carry out; conduct; do-> 行うgodan verb
た。
past tense or completed actiongrammar