Final answer:
The English question regards identifying verbs, infinitives, comma placement, and parts of sentences which include undertaking tasks such as underlining, circling, inserting, or omitting punctuation, and choosing the correct verb forms based on grammar rules.
Step-by-step explanation:
The identifying and modifying different parts of sentences, such as verbs, infinitives, and various phrases. It requires underlining main verbs, circling infinitives, inserting or omitting commas, identifying parts of sentences like subjects and intransitive verbs, and choosing correct verb forms.
While the question provided includes several instructions and examples, the following responses focus on the specific tasks mentioned: For underlining main verbs and circling infinitives in sentences, main verbs are the primary action words within a sentence, while infinitives are the base form of verbs, often preceded by the word "to."
When reviewing sentences for comma usage, the aim is to ensure that commas are placed correctly to separate clauses, series, or to enhance clarity. Identifying subjects, intransitive verbs, and adverbials involves locating the noun that is performing the action, the action being performed without a direct object, and any modifying phrases or clauses that provide additional context to the action.