It is imperative that you identify the shortcomings in your character

[NamelessKing]

Are my sentences natural and grammatical?

It is imperative that you identify the shortcomings in your character as well as your strengths. Of course, depending on other people's perspective, some will find what you consider a flaw, an endearing trait. For instance, I had an introvert pal that multiple fellow colleagues deemed as a strange individual, but there was this girl who found him rather appealing.

 

[jutfrank]

Pluralise perspective.

Lose the comma after flaw and add to be.

Consider replacing multiple with a different word.

 

[NamelessKing]

How about "various" instead of "multiple"?

 

[jutfrank]

Or perhaps several.

 

[Rover_KE]

NamelessKing, please post texts for editing in this forum rather than Ask a Teacher.

 

[YAMATO2201]

I had an introvert pal that ...

Is it OK to replace "introvert pal" with introverted friend?

"introvert pal" sounds a little old-fashioned to me.

 

[NamelessKing]

Is it OK to replace "introvert pal" with introverted friend?

"introvert pal" sounds a little old-fashioned to me.

I don't know if pal is old fashioned, but I think I should have written "introverted" instead of "introvert". I'm not sure though.

 

[Rover_KE]

Both introvert and introverted are used adjectivally. [click]

I suppose you can take your pick.

(Not a psychologist.)