英語八種時態一般現在時概念：經常、反復發生的動作或行為及現在的某種狀況。時間狀語：always, usually, often, sometimes, every week (day, year, month), once a week, on Sundays, etc.基本結構：be動詞；行為動詞否定形式：am/is/are+not;此時態的謂語動詞