This study investigates region-specific inflectional morpheme frequencies within the ICNALE Corpus, exploring significant global linguistic intricacies. Through a quantitative, corpus-based approach, it conducts a comprehensive contrastive analysis, leveraging the extensive accessibility of the online ICNALE. Despite inherent limitations in data collection primarily reliant on interviews and written compositions within the ICNALE Corpus, the study offers illuminating insights into how diverse linguistic backgrounds influence the usage of inflectional morphemes in English. The findings bring to light interesting patterns in possessive usage, reflecting variations among ESL learners in acquiring grammatical features. Additionally, it highlights complexities in acquiring comparative and superlative degrees, aligning with challenges encountered by learners in mastering specific inflections. Analyses of plural noun inflections, subject-verb agreement, past tense, past participle, and present participle usage underscore the multifaceted influences of language background, acquisition stages, and instructional emphasis on learners' morphological patterns. Future inquiries could further investigate the impact of instructional methodologies on inflectional morpheme acquisition, undertake comparative studies across proficiency levels and age groups, explore morphological transfer from learners' native languages, and deepen comprehension of cognitive processes guiding effective learning strategies. These endeavors hold promise in refining pedagogical methodologies and enriching language learning experiences for diverse learner cohorts.