hagyō shimoichidan/kaminidan/shimonidan/yodan katsuyōha-row lower-monograde/upper-bigrade/lower-bigrade/quadrigrade inflection

nito o ou mono wa itto o mo ezufocus on one thing at a time (literally, “one who chases two rabbits catches neither one”)

Sono shigoto, yamete wa dōka.How about quit your job?

Kono shōbu, dedokoro o miayamaru wake ni wa ikanai.In this match, we can't afford to mistake the time to take the offensive.