Why there is difference in "Next" and "Last" in "Last Month","Last Week", "Next Month", "Next Week" Why there is difference in "Next" and "Last" in "Last Month","Last Week", "Next Month", "Next Week" ? Ex : last month : прошлом месяце next month : следующем месяце Last week : прошлой неделе next week : следуюцей неделе