The use of the verb "MIND"

Mind as a verb
We use the verb mind to mean ‘take care or be careful of or about something’, or ‘pay attention to something’. In this meaning, we usually use it in the imperative:

Mind your step!

Mind your head. This is a very small door!

Kathy, mind that you don’t trip over my bag. It’s right by the door.

We can also use mind to mean ‘take care of someone or something’:
My mother has offered to mind the children while we are away.

Could you mind my bag for a moment?
Warning:

We don’t use mind to mean remember:
We must remember that it is our responsibility to protect and care for the environment.

Not: We must mind that …

I don’t mind, he doesn’t mind

We can use don’t/doesn’t mind to mean ‘not feel annoyed or worried by something’.
I don’t mind living near the train line. You get used to it.

She doesn’t mind waiting up late.
Warning:

We say I don’t mind, or it doesn’t matter. We don’t say it doesn’t mind:
A:
Sorry, there are no more chairs!
B:
I don’t mind. I can sit on the floor. (or It doesn’t matter. I can sit on the floor.)

Not: It doesn’t mind …

 When we refer to the future, we use present (not future) verb forms after mind:
I don’t mind what day they come and stay as long as it’s not Tuesday 12th because I’m away.

Not: … what day they will come and stay …

Would you mind? and Do you mind?

We use the phrases would you mind + -ing form, and do you mind + -ing form to ask people politely to do things. Would you mind is more polite and more common:
Would you mind opening the window, please?

Do you mind turning down the volume a little, please?

Do you mind me turning on the light? (I want to turn on the light)

When we ask for permission politely, we can use would you mind if I + past or do you mind if I + present:
Would you mind if I turned on this light?

Do you mind if I sit here?

When someone asks for permission, we usually reply no …, meaning ‘I don’t mind’ or ‘I’m happy with that’. If we want to say that we are not happy, we usually begin with I’m afraid …:
A:

Would you mind if we sat here?
B:

No, not at all. (you can sit here – I don’t mind)
A:

Do you mind if I use your phone?
B:

I’m afraid the battery is dead.

Not: No. The battery is dead.

Never mind

We use the phrase never mind to tell someone not to worry about something because it is not important:A:

Amy, I’m afraid I’ve broken a cup in your kitchen.
B:

Never mind, Liz. It’s only a cup!
A:

I really want to see that new Brad Pitt movie.
B:

It finished last week at the cinema.
A:

Oh, never mind. I’ll get it on DVD eventually.