What is inflection rule in English?

The inflection rule in English refers to the grammatical changes made to Words to convey different meanings or grammatical functions, such as tense, number, mood, or case. For example, adding "-s" to nouns to indicate plural (e.g., "cat" to "cats") or changing the verb form to denote past tense (e.g., "walk" to "walked"). Inflection allows for variation in Word forms while maintaining their base meaning, enabling clearer communication within sentences.