Even if one is very good at a language, even if he has many degrees. Can he be considered a native s CAn someone be considered a native speaker for being very good at a language? I see many foreigners here saying in their profiles they are native whereas they are born born in a English speaking country, nor live in.

What's the most used term to say that the person makes efforts hard-working or diligent? If there's another one comment please.

Sometimes you guys also notice you are forgetting some english words, grammar etc?

I don't know if it also happens to you. But sometimes I feel I'm losing my profiency. I sometimes either sttuter and forget some words...

is the sentense(to have ones's foot in plaster correct) is this correct or it's "to have the foot platred"?