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Sentence analysis
6Spans
Sentence
Span Details
作戦
tactics; strategy; plan; military operation; naval operationnoun
を
object markergrammar
変える
change; alter; transform; reform; revise; amendichidan verb
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
が
subject markergrammar
ある。
be; exist; have; possess; there is available; be located; be situated; be equipped with; have as a facility or feature; happen; take place; come about; be in a completed state; be left as done-> 有るgodan verb, auxiliary