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Anh Nguyen Essay

1815 words - 8 pages

Tổng hợp các thì trong tiếng Anh: công thức, cách sử dụng, dấu hiệu nhận biết 

1. THÌ HIỆN TẠI ĐƠN Simple Present

VỚI ĐỘNG TỪ THƯỜNG
* (Khẳng định): S + Vs/es + O
* (Phủ định): S+ DO/DOES + NOT + V +O
* (Nghi vấn): DO/DOES + S + V+ O ?
VỚI ĐỘNG TỪ TOBE
* (Khẳng định): S+ AM/IS/ARE + O
* (Phủ định): S + AM/IS/ARE + NOT + O
* (Nghi vấn): AM/IS/ARE + S + O
Từ nhận biết: always, every, usually, often, generally, frequently. 

Cách dùng:
1. Thì hiện tại đơn diễn tả một chân lý , một sự thật hiển nhiên.
Ví dụ: The sun ries in the East.
Tom comes from England.
2. Thì hiện tại đơn diễn tả 1 thói quen , một hành động xảy ra thường xuyên ở hiện tại.
Ví dụ: ...view middle of the document...

hate, realize, seem, remmber, forget,..........
Ex: I am tired now.
She wants to go for a walk at the moment.
Do you understand your lesson?

3. Thì hiện tại hoàn thành - Present Perfect
* Khẳng định: S + have/ has + Past participle (V3) + O
* Phủ định: S + have/ has + NOT+ Past participle + O
* Nghi vấn: have/ has +S+ Past participle + O
Từ nhận biết: already, not...yet, just, ever, never, since, for, recenthy, before... 

Cách dùng:

Thì hiện tại hoàn thành diễn tả hành động đã xảy ra hoặc chưa bao giờ xảy ra ở 1 thời gian không xác định trong quá khứ. 
Thì hiện tại hoàn thành cũng diễn tả sự lập đi lập lại của 1 hành động trong quá khứ. 
Thì hiện tại hoàn thành cũng được dùng với i since và for. 
Since + thời gian bắt đầu (1995, I was young, this morning etc.) Khi người nói dùng since, người nghe phải tính thời gian là bao lâu. 
For + khoảng thời gian (từ lúc đầu tới bây giờ) Khi người nói dùng for, người nói phải tính thời gian là bao lâu. 

4. Thì hiện tại hoàn thành tiếp diễn - Present Perfect Continuous
* Khẳng định: S has/have + been + V_ing + O
* Phủ định: S+ Hasn’t/ Haven’t+ been+ V-ing + O
* Nghi vấn: Has/HAve+ S+ been+ V-ing + O?
Từ nhận biết: all day, all week, since, for, for a long time, almost every day this week, recently, lately, in the past week, in recent years, up until now, and so far. 

Cách dùng: Thì hiện tại hoàn thành tiếp diễn nhấn mạnh khoảng thời gian của 1 hành động đã xảy ra trong quá khứ và tiếp tục tới hiện tại (có thể tới tương lai). 

5. THÌ QUÁ KHỨ ĐƠN - Simple Past

VỚI ĐỘNG TỪ THƯỜNG
* (Khẳng định): S + V_ed + O
* (Phủ định): S + DID+ NOT + V + O
* (Nghi vấn): DID + S+ V+ O ?
VỚI TOBE
* (Khẳng định): S + WAS/WERE + O
* (Phủ định): S+ WAS/ WERE + NOT + O
* (Nghi vấn): WAS/WERE + S+ O ?
Từ nhận biết: yesterday, yesterday morning, last week, las month, last year, last night. 

Cách dùng: Thì quá khứ đơn diễn tả hành động đã xảy ra và kết thúc trong quá khứ với thời gian xác định. 
CHỦ TỪ + ÐỘNG TỪ QUÁ KHỨ 
When + thì quá khứ đơn (simple past) 
When + hành động thứ nhất 

6. Thì quá khứ tiếp diễn - Past Continuous
* Khẳng định: S + was/were + V_ing + O
* Phủ định: S + wasn’t/weren’t+ V-ing + O
* Nghi vấn: Was/Were + S+ V-ing + O?
Từ nhận biết: While, at that very moment, at 10:00 last night, and this morning (afternoon). 

Cách dùng: 
Dùng để diễn tả hành động đã xảy ra cùng lúc. Nhưng hành động thứ nhất đã xảy ra sớm hơn và đã đang tiếp tục xảy ra thì hành động thứ hai xảy ra. 
CHỦ TỪ + WERE/WAS + ÐỘNG TÙ THÊM -ING 
While + thì quá khứ tiếp diễn (past progressive) 

7. Thì quá khứ hoàn thành - Past Perfect
* Khẳng định: S + had + Past Participle (V3) + O
* Phủ định: S+ hadn’t+ Past Participle + O
* Nghi vấn: Had+S+ Past Participle + O?
Từ nhận biết: after, before, as...

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