Sentence examples for did really understand from inspiring English sources

I never did really understand why those Russian teachers in black were prodding me with their canes and talking to me in French.

Often, it is clear that May does really understand that.

I don't really understand how he did this.

"I don't really understand what I did.

I didn't really understand.

"But we didn't really understand it.

I didn't really understand that concept".

"I didn't really understand it.

I didn't really understand it myself.

"But they didn't really understand that.

I didn't really understand how serious it was.