We can use the structure “may/might have done” to talk about what was possible to happen or the past possibilities:
You might have left your cellphone at work. = Perhaps you have left your cellphone at work.
I wonder if we can use a similar structure for the past. For example:
I could not find my cellphone. I might had left it at work. = Perhaps I had left it at work.
I have just seen the first structure in my grammar textbook but not the second one. Can we use the structure “might had done”, like in the second example?
Best Answer
The structure 'might had' is ungrammatical. If you are using a modal auxiliary verb (might, may, could, etc) to express something in the past, it has to be in the format
have + past participle.