Calipers were set and verified at 5 mm.

Question: what are all the verbs in the sentence?

This sentence has two main verbs and a helping verb.

What do you think they are?

calipers main verb

were helping verb

are the main verbs - calipers

- set

helping verb - - were

The helping verb is "were."

But calipers is a noun and the subject of this sentence.

One of the main verbs is "set." What else happened to the calipers?

verified - main verb ?

Thank you

Right.

were set, verified

Calipers were set and verified at 5 mm.