1.I (never been) ..... to England

⇒ I have never been to England

⇒ Cấu trúc : S + have/has+ P2 /-ed +(O)

⇒ Dấu hiệu : never (không bao giờ ): luôn đứng giữa have / has và P2 trong câu khẳng định

Giải thích P2 còn gọi là : Past Participle

2....... you (travel) ..... by plane before?

⇒  Have you traveled by plane before?

⇒ Cấu trúc : Have/Has+ S+P2 /-ed +(O) ?

⇒ Dấu hiệu : before :( trước) : luôn đứng cuối câu hỏi

3. It's the first time I (eat) .... pizza

⇒ It's the first time I have eaten pizza

⇒ Cấu trúc : S + have/has+ P2 /-ed +(O)

⇒ Dấu hiệu : first time

4. She (meet) .... her aunt before

⇒ She has met her aunt before

⇒Cấu trúc : S + have/has+ P2 /-ed +(O)

⇒ Dấu hiệu : before :( trước) : luôn đứng cuối câu hỏi

5...... you (ever eat) ...... salmon?

⇒ Have you ever eaten salmon?

⇒Cấu trúc : Have/Has+ S + P2 /-ed +(O) ?

`-` Thì HTHT :

`+` KĐ : S + have / has + VpII

`+` PĐ : S + haven't / hasn't + VpII

`+` NV : Have / Has + S + VpII ?

`=>` `DHNB` : before , ever , never , since , for , already , ...

`=>`

`+` I , You , We , They `+` have ( not )

`+` He , She , It `+` has ( not )

`1`.have never been

`2`.Have ... travelled ?

`3`.have eaten

`->` It is the first time + S + have / has + VpII : Lần đầu tiên làm gì

`4`.has met

`5`.Have ... ever eaten ?

`\text{# TF}`