っけ？ is a very casual way of asking a question to confirm something you vaguely remember. It is rare to use it in a written passage.
～だらけ
～だらけ is usually used in a negative concept meaning “full of something unwanted” or “covered with something undesirable.” Check the usage here.
～てたまらない
たまらない is used to describe something that is unbearable or irresistible. It is very often used with the てform of an adjective.
～てすむ/～ですむ
すむ（済む） has a few meanings but if it is used after a てform verb/adjective or a noun + で, ～て/で すむ means “to be settled with/by ～” or “～ is enough to…”
～ため（に）(cause/reason)
We have learned ～ため（に） to express a purpose before but today’s ～ため（に） is for describing a reason or cause. Check out examples here.
～たまえ
～たまえ is a rather old fashioned expression used for a request. I hear ～たまえ used in prayers often but I don’t hear it in everyday conversations very often.
～たはず
～たはず describes an action which should have taken place but actually didn’t and ～たはず often implies the speakers surprise or regret.
～たところ
～たところ is an expression used to specify a time/occasion in the past when the speaker discovered something unexpected or contradictory to their anticipation.
～たつもり
つもり means an “intention”, but if つもり is used with a past tense verb, ～たつもり can express an assumption or conviction which may not necessarily true or real.
～たことにする
～たことにする a pattern used to intentionally make a false statement about something in the past: “not actually ～ but I will pretend ～.”
～だけじゃなく/～だけでなく
～だけじゃなく (casual) / ～だけでなく (formal) means “not only ～” so inevitably a “but also” part which is indicated with the particle も follows.
～てごらん（なさい）
～てごらん or ～てごらんなさい is a gentle way to suggest an action to somebody who is junior to you such as your children, students, etc.
～たきり・・・（ない）
～たきり・・・（ない） means after the action of the たform verb is completed the condition described in the second half of the sentence is continuing.
～たいものだ/～たいものです
～たいものだ/～たいものです is a variation of ～たい（です） but it is used for a wish that is difficult to fulfill or something you have longed for for a long time.
～そうにみえる
～そうにみえる is used to describe your own opinion based on the appearance of somebody else or an external condition. Check more example sentences here.
～そうになる/そうになった
～そうになる is used when something out of a speaker’s control is about to happen. Ｉt is often used in the past tense to describe something that almost happened.
～そうにない/そうもない/そうにもない
～そうにない, ～そうもない and ～そうにもない are used when you describe something that is unlikely to happen. This post explains how to use them and subtle differences among them
～そうにする/～そうにしている
～そうにする/～そうにしている means “to look ～” or “to seem ～”. ～そうにする/～そうにしている follows an adjective stem which describes a person’s feeling or sense.
～だけでは…ない
～だけでは…ない is an expression for saying ～ is not sufficient to get an expected result. A potential (form) verb is often used in the latter half.
～ごとに
～ごとに follows a noun or a dictionary form verb and means “every ～” or “every time ～.” Differences between ～ごとに and ～たびに are explained at the bottom of this page.
