That's what units from Hong Kong wants to know.

And that's what we're talking about on this.

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Concern isn't down, and it means worry.

We often talk about feeling or expressing concern about something for someone or that, plus a clause.

For example, Sir David Attenborough often expresses concern about people's treatment of the environment.

Concerned is an adjective, and it means worried.

It has the same propositions as the now about four on that, for example, the bride is concerned that there won't be enough food for the reception.

Concern as a verb is a little bit more complicated, but one of its meanings is still worry.

It's not used in the first or second person.

So not I concern or you concern.

But we do use it with a preparatory subject.

It so it concerns me, means it worries me.

We don't normally use it in the continuous form, and we follow it with that, plus a clause, for example, it concerns me that London is becoming so expensive.

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And don't forget, at the end of the video, there is a full summary slide as a verb.

Concern can be a formal way of saying about, and it tells us which topic we are referring to.

In this way, you can also use concerning which is a proposition.

For example, this email concerns the ongoing dispute regarding worker pay.

There have been a number of questions concerning the suggested pay rise.

Concern can also mean involved or effect, and we use it to link the relevant people with the situation.

For example.

Please listen carefully, Eunice.

This lesson concerns you from this.

We get the past participle concerned, which means involved or affected on.

This often goes after a noun like a participle clause.

For example, the workers concerned will get a 3% pay rise.

Those not concerned we'll get nothing.

Finally, as far as is concerned now use with a pronoun such as you or I.

It means, in my opinion, for example, as far as I'm concerned, pepperoni pizza is the best.

However, use it with a different now to introduce the topic or thing.

For example, as faras cooking is concerned, I love cooking anything with eggs.

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