There are never enough minutes in the lesson for me to complete everything!
New material takes a while to sink in with me - and we run out of time
To sink in = be fully understood or realized, register, penetrate, be understood
"Peter read the letter twice before its meaning sank in"
Minutes in the lesson - this mimics a well know saying:
"There are never enough hours in the day!" this expression means that you have a lot to do and never enough time in which to do it.
To sink in =十分に理解する、浸透する、わかってもらう
"Peter read the letter twice before its meaning sank in"
（ピーターは2回その手紙を読んで十分に意味を理解した）
Minutes in the lesson -レッスンの時間
この表現の模倣はよく知られた言い回しです。
"There are never enough hours in the day!"
（一日では十分な時間がない）
この表現は沢山することがありすぎて十分に時間がない、という意味です。
I wish the lessons were longer because time is always up before I really understand things.
Time flies when I am taking my lesson.
You can use these variations to express that the time seems to pass you by during your lessons.
The time is really short.
I wish I had more time to understand.
Wow, time really flew by!
これらのフレーズを使って時間が足りないということを表現できます。
例文：The time is really short.
訳：時間が短い。
例文：I wish I had more time to understand.
訳：もっと理解できる時間があればいいのに。
例文：Wow, time really flew by!
訳：あら！あっという間に時間が過ぎていく！
I always seem to run out of time during the lesson
There is never enough time!
I always seem to run out of time during the lesson- 'to run out of...' means to 'use up'. You can run out of time, food, tea, chocolate etc. If you find that the lesson material is hard, therefore you run out of time, you could ask to do an easier lesson. 'I always seem to run out of time during the lesson so next time could I choose something easier, please?'
There is never enough time! - this is a statement to say 'time is always running out'. You feel that the lesson time is not enough for you to complete the lesson.
out of time, food, tea, chocolate etc.
(時間、食べ物、お茶、チョコレートetc… がない)
レッスン教材が難しいと感じて、時間が足りなくなってしまったら、もう少し優しい教材に変えてもらいたい事をお願いすることが出来ます。
'I always seem to run out of time during the lesson so next time could I choose something easier, please?'
（いつも時間が足りなくなってしまうので、次回はもう少し簡単なものにしてもらってもいいですか？）
There is never enough time!
(時間が十分ありません）
これは'time is always running out'(いつも時間切れになってしまいます）と伝える表現です。
あなたはレッスンを終わらせるのに十分な時間がないと感じるという事です。
If you are wanitng to explain that there is not enough time when using different material in a lesson the simplest way is 'I always run out of time when......' another good way is 'There never seems to be enough time!' you can then maybe explain why there is not enough time to help the teacher better understand
”I always run out of time"（いつも時間切れになる）と言うことで、他の教材をする時間が十分にないことを説明することが出来ます。
もう一つの言い方は、”There never seems to be enough time"（いつも時間が足りない）という表現です。このような言い方をすれば、先生に「時間が足りない」ことを伝えることが出来ると思います。
I always run out of lesson time because new material takes time to sink in.
It is difficult to understand new material and I always run out of lesson time as a result of asking questions.
For a student to understand what he/she is learning, it is very important for him/her to ask questions whenever he/she does not understand a word, expression or a sentence. It sometimes happens that because the student would like cover as much of the lesson as possible, he/she does not ask the questions and prefers to proceed to the next exercise. However, some students do not mind running out of time, so they ask questions whenever they encounter words, expressions or sentences that they do not understand.
So you may say:
I always run out of lesson time because new material takes time to sink in.
or
It is difficult to understand new material and I always run out of lesson time as a result of asking questions.
生徒が学んでいる事をきちんと理解する為には、分からない単語やフレーズ、表現などを質問する事が非常に大事です。
ときどき、レッスン内容を出来るだけ学習するために、質問をしないで次のエクササイズに進みたがる生徒がいます。しかし時間切れになっても構わないから、分からない単語や表現、文章が会った時はすぐに質問をする生徒もいます。
なので、こんな風に聞きます：
I always run out of lesson time because new material takes time to sink in.
（新しい教材は理解するまでに時間がかかるので、いつもレッスンの時間切れになります。）
It is difficult to understand new material and I always run out of lesson time as a result of asking questions.
（新しい教材を理解するのは難しいので、いつも沢山質問した結果時間切れになります）
I always run out of time before understanding the lesson fully
It usually takes time for me to understand difficult material, so I always run out of time during a lesson before I understand everything.
When you want to explain that it takes time for you to understand difficult material and always run out of time in the lesson before you understand everything; then you should say:
-I always run out of time before understanding the lesson fully
-It usually takes time for me to understand difficult material, so I always run out of time during a lesson before I understand everything.
教材が難しいとすべて理解できる前にレッスンの時間がなくなってしまうと言いたいなら、以下の文が使えます：
-I always run out of time before understanding the lesson fully
（いつもすべて理解する前にレッスンの時間がなくなってしまいます）
-It usually takes time for me to understand difficult material, so I always run out of time during a lesson before I understand everything.
（教材が難しいとすべて理解できる前にレッスンの時間がなくなってしまいます）
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