Lose One's Train of Thought
Have you ever been in the middle of saying something and then, all of sudden, not been able to remember what it was you were saying? I don’t need to ask this question because it happens to everyone from time to time - to me, it, unfortunately, happens regularly! In English, you can call this losing one's train of thought. Here are some sample sentences using the expression to lose one’s train of thought:
I've lost my train of thought. What was I talking about?
When the speaker was asked a question, she lost her train of thought.
It’s very frustrating when I lose my train of thought.
If you know that you tend to lose your train of thought, what can you do to make sure that you keep your train thought?