Peter has always a look of pain

[Bassim]

I am wondering if my sentence is grammatically correct.

Peter has always a look of pain on his face, so you don't know when he is really in pain.

 

[Lynxear]

It may be correct grammatically, but I don't like it.

When you are writing it is usually not a good idea to repeat words in a sentence. It is usually boring and sometimes confusing.

There are many alternative words that you could replace the second "pain" with. For example:

Peter has always a look of pain on his face, so you don't know when he is really hurt.

See how changing the second "pain" makes the sentence easy to read and more interesting?

 

[Skrej]

I find the order of 'has always' very unnatural. I would expect to hear 'always has'.

 

[Rover_KE]

I prefer 'Peter always has a pained expression, so you don't know when he is really hurt'.

 

[emsr2d2]

And I'd use "Peter always looks like he's in pain so you don't know when he really is" or "Peter always has a look of pain on his face so you don't know when it's real".

As you can see, Bassim, there are lots of ways to say it. Most of us, however, agree that "He has always a look ..." was an unnatural word order at the start.