Is the word preferred a verb?

Yes, "preferred" can be a verb. It is the past tense and past participle of the verb "prefer".

Here are some examples:

* "I preferred the blue shirt over the red one." (past tense)

* "She has preferred to work from home since the pandemic." (past tense)

* "The customer preferred a larger size." (past participle)

However, "preferred" can also be an adjective. This is when it describes a noun as being liked better than something else.

Here's an example:

* "This is my preferred method of travel."

To determine if "preferred" is a verb or adjective, you need to look at how it's used in the sentence.