我是一名中四學生,遇到一些學習上問題

我今年中四,係英文堂 miss 都係叫我地做下d comprehension..
中四冇一本text book.
但我真正想學o既係一d grammar,tense
例如passive voice, 同埋 好似 " if i were u, i would xxx" " if i had studied hard, miss chan would not have had punished me" 呢d..因為我認為仲有千千萬萬樣呢d grammar..對作文都有用..就以上面為例..如果我唔識作文可能會寫if i am u, i will xxxx.." 當然我識左呢個skill唔會..但其實我有好多skills都唔識..所以作文應該會好似上面個句咁犯錯"咁我可以點做??
開左學十個月,我覺得我係英文堂學到o既野係 " 0 ".. 希望有人幫到我