朝は電車が大変混雑する

N5 朝 asa morning N5 電車 densha train N5 大変 taihen difficult, hard, very, serious N3 混雑 konzatsu congestion, crowding, confusion N5 する suru do, perform, try

N4 朝 chou / asa morning, dynasty, regime N5 電 den electricity, électricité, electricidad N5 車 sha / kuruma car, véhicule, voiture N5 大 dai, tai / oo-, oo.kii, -oo.ini large, big, grand N3 変 hen / ka.waru, ka.wari, ka.eru unusual, change, strange N2 混 kon / ma.jiru, -ma.jiri, ma.zaru, ma.zeru, ko.mu mix, blend, confuse N3 雑 zatsu, zou / maji.eru, maji.ru miscellaneous, divers, misceláneo

N5 〜が ga Marks the grammatical subject, highlights new information, can also show slight contrast in some sentences N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information