Affirmative conjunctions are words that connect clauses or sentences while expressing agreement or affirmation. Common examples include "and," "also," and "too." These conjunctions help to combine ideas, making sentences more fluid and cohesive. In English grammar, using affirmative conjunctions can enhance clarity and emphasis. For instance, saying "I like apples and oranges" indicates a positive relationship between the two items. They are essential in both spoken and written communication, allowing for smoother transitions between thoughts and reinforcing connections between concepts.