ในภาษาอังกฤษ ถ้าเราจะพูดว่า ด้วยเหมือนกัน เช่นกัน ปกติเราก็จะใส่ท้ายประโยคว่า too! ซึ่งนอกเหนือจากนี้จะมีวิธีบอกว่าด้วยเหมือนกันด้วยการนำ So เข้ามาใช้นั่นเอง โดยหลักการใช้จะเป็นโครงสร้างนี้ So+Auxiliary(oe be/have)+Subject เพื่อให้เห็นภาพมากขึ้นมาดูตัวอย่างกันดีกว่า
| คนแรกพูดว่า… | คนที่สองพูดว่า… | เทียบเท่า |
| I am happy. | So am I | I am happy too. |
| You are making a noise. | So are you. | You are making a noise too. |
| He had eaten too much. | So had I. | He had eaten too much too. |
| They have finished early. | So have I. | I have finished early too. |
| He should study more. | So should I. | I should study more too. |
| She will win an award. | So will I. | I will win an award too. |
| I would like a cup of tea. | So would I. | I would like a cup too. |
| We could see the stars. | So could I. | I could see the stars too. |
| She can play the piano. | So can I. | I can play the piano too. |
| I watched a movie last week. | So did I. | I watched a movie last week too. |
| We were late. | So were they. | They were late too. |
| I was tired this morning. | So was I | I was tired too. |
| Sean likes cake. | So does Katy. | Katy likes cake too. |
| I need more money. | So do I. | I need more money too. |