When do you use er to compare adjectives?

You use "-er" to compare adjectives when you are comparing two things. Here's how it works:

1. Adjectives with One Syllable:

* Add "-er" to the end of the adjective.

* *small* -> *smaller*

* *big* -> *bigger*

* *fast* -> *faster*

2. Adjectives with Two Syllables:

* If the adjective ends in "-y," change the "y" to "i" and add "-er."

* *happy* -> *happier*

* *easy* -> *easier*

* *dirty* -> *dirtier*

* Otherwise, use "more" before the adjective.

* *lovely* -> *more lovely*

* *helpful* -> *more helpful*

* *interesting* -> *more interesting*

Examples:

* The blue car is smaller than the red car.

* My dog is happier than your dog.

* This movie is more interesting than the last one.

Remember:

* You use "-er" for comparative adjectives.

* Use "the" before the adjective when comparing two specific things.

* Use "-est" for superlative adjectives (comparing more than two things).

Let me know if you have any other questions about comparing adjectives!