列(れっ)車(しゃ) resshaは wa３０ 30分(ふん) fun遅(おく)れ()て()い()る() okureteiru。 The train is 30 minutes behind schedule. Literal Train [topic-は] 30-minutes is-late. 遅れている uses the ~ている resulting-state reading: 'is (in a state of) being late by 30 minutes.' The duration 30分 functions adverbially without a particle. trains~ている (resulting state)duration as bare adverb
列(れっ)車(しゃ) resshaは wa３０ 30分(ふん) fun遅(おく)れ()て()い()る() okureteiru。 The train is 30 minutes behind schedule. Literal Train [topic-は] 30-minutes is-late. 遅れている uses the ~ている resulting-state reading: 'is (in a state of) being late by 30 minutes.' The duration 30分 functions adverbially without a particle. trains~ている (resulting state)duration as bare adverb