Learning guides
Understand readings and expressions, then put them into practice with review and mock tests.
わけがない and わけにはいかない: impossibility and constraints
Distinguish judging something impossible from being unable to choose an action because of responsibility. See how a negative verb before わけにはいかない turns the meaning into an obligation.
とは限らない: withholding a definite conclusion
Use とは限らない to allow exceptions to an apparently general conclusion. Distinguish it from a blanket denial and track the possibility left open when it follows a negative clause.
に違いない: strong conviction based on clues
Use に違いない to draw a confident conclusion from the circumstances. Distinguish this from an expectation based on known information, a mere possibility, and an obligation to act.
べきだ and べきではない: appropriate actions and actions to avoid
Use べきだ to say what ought to be done according to a standard or judgment. Explore its negative form, retrospective regret, and the strength of the advice a listener receives.
さえ and さえ〜ば: an extreme example or a sufficient condition
Distinguish さえ highlighting a surprising example from さえ〜ば presenting one sufficient condition. Learn how particles connect and how to make an action the condition.
こそ and からこそ: emphasizing the very item or reason
Use こそ to pick out what matters against other possibilities. Distinguish emphasizing a reason with からこそ from excluding other possibilities with だけ.
だけでなく and ばかりか: adding facts and exceeding expectations
Compare two expressions that retain one fact while adding another. Check their connecting forms, the emphasis of も and まで, and the contrast with an expression that rejects the first item.
ついでに: adding a task while taking care of another
Use ついでに for an extra task done on the occasion of a main activity. Learn its verb and noun connections and distinguish this relationship from doing two things simultaneously.
たとたん: an unexpected change the moment an action occurs
Use たとたん for an event occurring at the very moment another action takes place. Distinguish it from a simple sequence and from describing a planned action.
かける: an action started but not finished
Read unfinished actions and moments on the verge of happening with the masu-stem plus かける. Compare 始める, the noun-modifying かけの form, and whether completion actually occurred.
きる and きれない: full completion and limits on what can be done
Distinguish completion with きる from the negative potential きれない. Compare not finishing with being unable to finish, and explore the difference in focus from 終わる.
ぬく: persisting through difficulty to the end
Learn ぬく with its focus on persevering through a task. Compare overlap with きる and uses that highlight sustained effort or thorough thought.
がち and 気味: recurring tendencies and mild conditions
Distinguish がち for something liable to happen repeatedly from 気味 for a mild condition. Explore verb and noun connections and the scope supplied by context.
っぽい: impressions and noticeable tendencies
Separate impressions, a material-like quality, and behavioral tendencies expressed by っぽい. Learn its i-adjective inflection and compare its evaluation with らしい.
だらけ and まみれ: plentiful problems and substances on surfaces
Compare だらけ for many unwelcome things with まみれ for a coating of a substance. Explore mud as an overlapping case and abstract items where the forms are not interchangeable.
ふりをする: deliberately acting unlike the real situation
Use ふりをする for pretending. Track ongoing, completed, and negative content within the pretense, and distinguish it from merely appearing to be in a state.
くせに: criticizing behavior that conflicts with expectations
Use くせに to express dissatisfaction with behavior that clashes with a known fact. Compare the contrast shared with のに, connecting forms, and the force of addressing someone this way.
おかげで and せいで: gratitude and regret attached to causes
Compare おかげで crediting a cause for a good result with せいで blaming a cause for a bad one. Read negated result clauses, uncertain causes, and irony in context.
ものの: acknowledging a fact when expectations are not met
Use ものの to accept an established fact before presenting a result that falls short. Compare its connecting forms, the emotion of のに, and a hypothetical condition.
限り and ない限り: conditions that hold and exceptions
Distinguish a result valid while a condition holds from one maintained unless something happens. Explore the logic of ない限り and 限りでは limiting a claim to what has been checked.
起きる and 起こす: waking up and events happening
Distinguish the person waking up from the person doing the waking, then compare the verbs when an accident occurs.
寝る and 眠る: going to bed and being asleep
Compare 寝る for lying down or going to bed with 眠る for sleeping, separating bedtime from actual sleep.
立つ and 立てる: standing up and setting objects upright
Compare where a person stands with where an object is placed upright, and examine 立てる for making a plan.
座る and 腰掛ける: seats and sitting positions
Compare sitting on a floor and on a chair, without overinterpreting posture where 座る and 腰掛ける overlap.
並ぶ and 並べる: waiting lines and display order
Compare people lining up with arranging objects, distinguishing line position, arrangement criteria, and displayed states.
渡る and 渡す: crossing a street and handing something over
Read を with both a crossing route and an object handed over, distinguishing a recipient from a destination.
通る and 通す: a route and allowing passage
Compare a route taken with an object allowed through, and examine showing someone in and looking over material.
戻る and 戻す: returning to a place or an earlier state
Compare a person returning with putting an object back, and examine returning to an earlier screen or setting.
返る and 返す: an item coming back and returning it
Compare money or objects coming back with returning them, and distinguish going home with 帰る from replying with 返す.
進む and 進める: progress and moving work forward
Compare movement with work progressing, and distinguish 進める for moving work forward from 勧める for recommending.

