有些英語單詞的一次太過相近，很容易讓學生弄不清楚他們的用法。為了幫助大家，下面小編整理了一些易混淆的形容詞的用法總結，希望能幫到大家!
1. either & each & both & neither & every
[誤] There are many flowers on either side of the street.
[誤] There are many flowers on neither side of the street.
[誤] There are many flowers on each sides of the street.
[正] There are many flowers on both sides of the street.
[正] There are many flowers on each side of the street.
[誤] Every student has not finished their homework.
[正] No student has finished their homework.
either意思是“兩者之一的”，each意思是“任意一個的”，neither意思是“兩者都不的”，every強調整體，意思是“個個”。
2. any & some
[誤] Have you got some money with you?
[正] Have you got any money with you?
[誤] Would you like any milk?
[正] Would you like some milk?
any和some意思是“一些”，用作定語，可修飾可數名詞和不可數名詞。any多用於否定句和疑問句，some多用於肯定句。 但如果說話人表示“請求，提議”或“希望得到肯定回答”的意義時，some也可用在疑問句中;some還可用於單數名詞前，表示未知或說話人不想特別說明的人、地、物等，意思是“某一，某個”。 如果表示“任何，無論哪個”時，any可用在肯定句中。
3. few/little & a few /a little
[誤] Sorry, I have few money on me.
[正] Sorry, I have little money on me.
[誤] Her books are few.
[正] She has few books.
[誤] The work needs a few number of workers.
[正] The work needs a small number of workers.
[正] The work needs a few workers.
few後跟可數名詞複數，little後跟不可數名詞，都表示“幾乎沒有”的否定性意思;a few和a little區別也在於前者跟可數名詞，後者跟不可數名詞，都表示“有幾個”的肯定性意思。
4. no & not
no意思是“沒有”，可以否定一切名詞，修飾不可數名詞和可數名詞的'複數時等於not any，修飾可數名詞單數時等於not a/an;如果被修飾的名詞通常情況下只有一個，則用它的單數形式;不能用a、the、all、every等限制詞之前，而not可以。 not意思是“不，不是”，可以否定一切動詞，修飾動詞。 no more than意思是“不過，僅僅”，相當於only，修飾“數量”詞，強調“少”的含義;not more than意思是“至多，不多於，不超過”，用於陳述事實;no more…than和not more…than多用於多音節形容詞的比較級。
5. already & yet & still
[誤] When we arrived at the airport, the plane had taken off yet.
[正] When we arrived at the airport, the plane had taken off already.
[正] When we arrived at the airport, the plane had already taken off. already意思是“已經”，一般用於肯定句，常與完成時連用，常用於句中;yet意思是“已經，還”，一般用於否定句和疑問句，常用於句末;still意思是“仍然，還是”，強調動作在進行，主要用於肯定句，常用於句中。
6. sometimes & sometime & some time & some times
[誤] You can only keep the book for sometime.
[正] You can only keep the book for some time. sometimes是頻度副詞，意思是“有時，不時”，常與一般現在時或一般過去時連用;sometime是副詞，意思是“在某個不確定的時間，在某個時候，某時”，可與將來時或過去時連用;some time是名詞片語，意思是“一段時間”，做時間狀語，也可用作副詞片語，用來指一個未肯定的時刻，常指將來，此時可與sometime通用;some times是名詞片語，意思是“幾次，幾倍”。
7. also & too & either & so & neither & nor
[誤] My parents didn’t like swimming, nor did his.
[正] My parents didn’t like swimming, neither did his.
also用於肯定句，一般放在行為動詞之前、助動詞、情態動詞、系動詞之後，too一般用於肯定句末，前面常用逗號;either一般用於否定句末，前面也用逗號;so置於句首，引起句子倒裝，表示前面所講的情況也適用於另一個人或物，具有否定的意思;so後的主語與前一句主語是同一個人或物時，後面的主謂不倒裝，表示“確實如此”;neither置於句首，引起句子倒裝，表示前面所講的情況不適用於另一個人或物，具有否定的意思;nor常與 not連用，表示“也不”，neither和nor都可用來對前面的否定陳述加以補充，如果補充的成分否定的不是同一事物，同一內容，就只能用nor，不可用neither;當否定的並列分句有兩個以上時，只能用nor，因為neither只能指兩者中的一個，nor指三個以上的另一個。
