求初中英语时态总结及所有英语名词变复数的不规则变化

一、 一般现在时1.概念：经常、反复发生的动作或行为及现在的某种状况. 2.时间状语： Always, usually, often, sometimes, every week (day, year, month…), once a week(day, year, month…),on Sundays, ...