Explanations:In English grammar, the formation of the third-person singular present tense of verbs and the plural form of certain nouns follows specific rules. One of these rules pertains to the addition of "es" to verbs and nouns ending in certain letters. The letters that require the addition of "es" are "o," "x," "z," "s," "ch," and "sh." This rule is important for correct spelling and grammatical accuracy.
Let's break down the rule in detail:
1. **Verbs ending in "o":** When a verb ends in "o," the third-person singular present tense is formed by adding "es." For example, "go" becomes "goes," and "do" becomes "does."
2. **Verbs ending in "x":** When a verb ends in "x," the third-person singular present tense is formed by adding "es." For example, "fix" becomes "fixes," and "box" becomes "boxes."
3. **Verbs ending in "z":** When a verb ends in "z," the third-person singular present tense is formed by adding "es." For example, "buzz" becomes "buzzes," and "quiz" becomes "quizzes."
4. **Verbs ending in "s":** When a verb ends in "s," the third-person singular present tense is formed by adding "es." For example, "pass" becomes "passes," and "miss" becomes "misses."
5. **Verbs ending in "ch":** When a verb ends in "ch," the third-person singular present tense is formed by adding "es." For example, "watch" becomes "watches," and "catch" becomes "catches."
6. **Verbs ending in "sh":** When a verb ends in "sh," the third-person singular present tense is formed by adding "es." For example, "brush" becomes "brushes," and "wish" becomes "wishes."
It is important to note that this rule applies specifically to verbs in the third-person singular present tense. For example, "he goes," "she fixes," "it buzzes," "he passes," "she watches," and "he wishes." The same rule applies to nouns that end in these letters when forming their plural forms. For example, "ox" becomes "oxen," "box" becomes "boxes," "buzz" becomes "buzzes," "pass" becomes "passes," "watch" becomes "watches," and "brush" becomes "brushes."
Understanding and applying this rule correctly is crucial for accurate spelling and grammatical usage in English. It is a fundamental aspect of English orthography and is often tested in various standardized exams such as the SAT, ACT, TOEFL, and IELTS.