You can change the active voice to the passive voice by changing an object to a subject, as follows: let us say that your original sentence is Fred has eaten dinner. That is the active voice. Dinner is the object. In the passive voice dinner becomes the subject, so the sentence becomes, dinner has been eaten. Fred, the original subject, has disappeared. We no longer know who ate the dinner, we merely know that it has been eaten by someone. The passive voice is therefore distinguished by being less informative. It is used by people who are trying to evade responsibility for something, or to avoid being specific. Something happened but we can't say who did it.

The form of passive is be + past participle

eg - been eaten, being eaten, was cooked, is cooked,

The passive allows us to leave the 'doer' of the verb out of the sentence. This is useful if the 'doer' is not important. eg

The Mona Lisa was painted in the 16th century.

If you want to say who does the action of a passive verb add by + pronoun / noun phrase at the end of the sentence. This is called the agent.

The dinner was eaten by Fred.

This is useful if you want to emphasis the agent eg

The painting is very valuable. It was painted by Van Gogh.

To learn if your poem is in iambic pentameter, an understanding of iambic and pentameter is required.

Iambic:

To achieve the " iambic " you need a word that you choose not to emphasize followed immediately by a word that you choose to emphasize.

For example: the boy

To make ' the boy ' iambic, the word ' the ' must be spoken lightly [unemphasized] and the word ' boy ' must be spoken firmly [emphasized].

That is: the boy

Other examples: a lamb; my pie; yan-kee

Pentameter:

Place five iambics consecutively and you have pentameter.

Example of iambic pentameter from modified Shakespeare:

to be or not to be that is to see

to be / or not / to be / that is / to see

1 / 2 / 3 / 4 / 5

In the poem Jabberwocky, the word "manxome" is an adjective. It is used to describe the "foe" that the boy is looking for.

He took his vorpal sword in hand:

Long time the manxome foe he sought --

So rested he by the Tumtum tree,

And stood awhile in thought.

Yes, the noun "autographs" is a common noun, the plural form of the singular noun "autograph", a general word for anyone's signature written by hand.

The word "autographs" is also the third person, singular, present of the verb to autograph.

It was a cold dark night. The bats were out on the cold dark night. Thay went for a walk on the cold dark night.

In case you can't guess, cold dark night is the repeating phrase.

The word 'professional' is both a noun and an adjective.

The noun 'professional' is a word for someone who has achieved a level of proficiency in a calling or trade; a word for a person.

Examples:

She plays tennis like a professional. (noun)

I'm going to be a professional dancer when I leave school. (adjective)

No, the word 'team' is not a pronoun.

The word 'team' is a noun, a word for a group of people or animals, a word for a thing.

A pronoun is a word that takes the place of a noun in a sentence.

A personal pronoun is a word that takes the place of a noun for a specific person or thing.

The personal pronoun that takes the place of the noun 'team' is it.

Example:

The carriage was drawn by a team of horses. It was a team of two.

Although the noun 'team' is a singular noun, most people prefer to use the third person, plural personal pronouns (they, them), referring to the members of the team. It is grammatically incorrect, but most people prefer to use they and them.

Example:

We have a great team this year. They have won the first three games.

the verb is threw. Threw is the past tense of throw.

So the tense of this sentence is past to be exact past simple