The equative form is a way to use adjectives to express equality, or how two things are the same.
The structure is simple. First, we need two things to compare. Let’s look at a comparative sentence.
Ex: Montreal is bigger than Quebec City.
Here, we are comparing Montreal and Quebec City. Let’s find something both cities have in common.
For example, both cities are cold in the winter. Using the equative form, we would say:
Ex: Montreal is as cold as Quebec City in the winter.
All we need to do is put the word ‘as’ before and after an adjective and make sure that we have two subjects to compare. The subject doesn’t have to be a noun. Sometimes, when giving opinions about people, you’ll use simple pronouns.
Ex: She is as good as you at her job.
For negative sentences, or to express inequality, all you need to do is to add ‘not’ in front of the first ‘as’.
Ex: Frieda is not as tall as Marco.
We can also use the equative form with adverbs by putting ‘as’ before and after an adverb.
Ex: Lucy works as efficiently as her boss.
Ex: Henry swims as well as his brother.