Verbs

I'm having problems with my 5th graders english.
1. The early summer days on a farm are the happiest and fairest days of the year.

...the question is, "what kind of verb is in the sentence?"

What I do know, that happiest and fairest are superlatives...is there a such thing as superlative verbs?

[Casiopea]

Welcome, Neal.

In English, the verb tends to come directly after the subject. To find the subject ask the question, "What are the happiest and fairest days of the year?".

Subject: The early summer days on a farm
Verb: are
Subject Predicate: the happiest and fairest days of the year.

Note, the verb To Be has many forms;e.g., is, am, are, was, were, been. It links or joins the subject with its predicate, and it can be replaced with an equals sign, like this,

The early summer days on the farm = the happiest and fairest of the year.