IXL | Commas with coordinate adjectives

Insert one comma to separate the coordinate adjectives.

When the warped unstable shelves in the pantry began to bow in the middle, Ron bought some new plywood to rebuild them.

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question

Insert two commas to separate the coordinate adjectives.

Thorough habitual hand washing is an ideal way to keep yourself healthy. Disinfecting contaminated surfaces is another simple effective method for preventing the spread of viruses.

key idea

Coordinate adjectives are adjectives that describe the same noun equally. They should be separated with commas.

Answer these two questions to check for coordinate adjectives:

Does the text still sound okay when the adjective order is changed?

Does the text still sound okay when and is inserted?

If the answer to both questions is yes, then the adjectives are coordinate and should be separated with commas.

solution

Look for adjectives that are next to each other and then test whether they are coordinate adjectives.

Thorough and habitual are coordinate adjectives, so they should be separated with a comma. You can tell because the text still sounds okay when the adjective order is changed as well as when and is inserted.

green checkmark, habitual, thorough hand washing
green checkmark, thorough and habitual hand washing

Habitual and hand are not coordinate adjectives, so they should not be separated with a comma. You can tell because the text does not sound right at all when the adjective order is changed or when and is inserted.

red X symbol, hand habitual washing
red X symbol, habitual and hand washing

Simple and effective are coordinate adjectives, so they should be separated with a comma. You can tell because the text still sounds okay when the adjective order is changed as well as when and is inserted.

green checkmark, effective, simple method
green checkmark, simple and effective method

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