Techniques to find errors include: Read the text carefully and pay attention to the use of punctuations. 2 Use a text editor or online tool to check for punctuation errors in your text. 3 Use the Punctuation Inspector tool to help automatically check for punctuation errors. 4 copy the text into a text editor and paste it to check if the punctuations are correct. 5 Read the text over and over again until you notice any errors in the punctuations. 6 Mark the text with punctuations to make it easier to find errors when checking. For example, you can use bold or bold to mark important information in the text or use underlining to mark keywords.