私の言ったことがわからなかったら、もう一度聞いてって英語でなんて言うの？

You need to be corrected when you make a mistake - otherwise, repeated use, making the same error, will only further confirm this error to your memory. You may ask your teacher to 'point out' any mistake you make so that you can try again, or tyou may be asked to rephrase the question follow an incomplete or imperfect response.

When you want to let your teacher know that they shouldn't guess what you are trying to say but should rather ask you; then you can say it in the following ways: -If I'm not being clear, please try not to guess what I'm trying to say. Rather ask me again. -If you don't understand what I'm trying to say when I speak, please ask me again. -Ask me if you don't understand what I am saying.

The three sentences you see provided above are great ways to express to your teacher that you want them to ask you to repeat yourself if they do not understand what you are saying. In the third sentence you will notice the verb grasp. This verb means to understand or comprehend. This is a word that is common in our everyday conversation and it would make a great addition to your vocabulary.

If something is 'not clear' it is not easy to understand so you could say 'if it is not clear, please ask me again' you are saying and giving them permission to ask again to check they understand you.

If you do not understand me please ask me to say it again - This is a very straight forward way to tell your teacher that you would like them to listen more carefully. When you do not understand me, please ask me to repeat myself - This tells the teacher that you would like to try again before they guess what you are wanting to say. If you do not understand what I am saying, please ask me to clarify or to repeat myself - This is a very straight forward way to tell them exactly what you want. All of these are polite and a reasonable thing to say to a teacher.