majlo said:I see. Could I count a capitalization error to a punctuation error? I mean, are these the same kinds of errors by chance?
(the use of) special marks that you add to writing to separate phrases and sentences, to show that something is a question, etc:
His letter was completely without punctuation.
to add punctuation marks to written words so that people can see when a sentence starts and finishes, or that something is a question, etc.
Well that's OK thenCapital letters are not really an aspect of punctuation, but it is convenient to deal with them here.