Online Learning Applications for Technical English


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Proofreading: Editing Marks

Let us take a look at some common editing marks used in proofreading English writing.

Adding letters/words (, ^)

Consider the sentence:
This is a pen.
We can add some letters to change it to: "This is a pencil."
This is a pen.

We can use the same mark to add words to a sentence:

This is a pen. This is a blue pen.

We can also use the "carrot" marks above or below the lines to add letters/words to a sentence:

This is a pen.
Note 1: When we want to add small punctuation marks such as periods, colons, semicolons, etc., we circle them to distinguish them from stray marks. For example:
This is Mr. Smith.
A regular period mark is added (not a period with a circle around it).

Note 2: When we want to add a space, we use the "sharp" mark. For example:

He likes apples a lot.

Removing letters/words ()

To remove the extra 'n' in this sentence, we use a line with a loop at the end as follows:
This is a pen.

Do not use a plain line (it has a different meaning, see below). We can also use this mark to remove words from a sentence. For example:

This is a pen.
Note 1: To remove spaces, we use the "chain" mark. For example:
She cannot come.

Replacing (removing and then adding) single letters

When we want to change a single letter, it is not good practice to use both the remove and add marks. That is:

In this case, we do the following:

pin

Switching letters/words ()

We can switch letters and words in a sentence as follows:
This is a blue pen.
This pen is blue.

Changing cases (, )

We can change lowercase letters to uppercase and uppercase letters to lowercase as follows:
November
the

Check spelling (sp)

A simple spelling error can be indicated with the "check spelling" mark:

This sentence should be corrected to: "We study about the government and environment."

New paragraph ()

We use this mark when we want to start a new paragraph. For example:

is rewritten as:

We explain the procedure below.
    First, we must collect...

Ignore marks (STET)

When we want to restore edited text to its original state, we use the "STET" keyword. For example:

Here, we should ignore the mark to remove "wonderfully" (i.e., the sentence stays in its original form: "He was a wonderfully fine boy.").

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