`1.` I've worked here for three years

`-` Thì HTHT - có: "for three years là DHNB

`-` Cấu trúc: S + have/has + Vpp

`2.` We will have a meeting tomorrow 

`-` Cấu trúc thì TLD: S + will + V-inf 

`3.` It's age since i last had a Chinese meal 

`-` Cấu trúc: It + is + khoảng thời gian + since + S + last + Ved/Vc2 + ...

`4.` When we arrived, David had gone home

`-` Thì QKHT, form: S + had + Vpp

`5.` Helen's flight arrives at 8.00

`-` Cấu trúc thì HTđ: S + Vs/es + ... 

`1`.I've worked here for three years

`\rightarrow` Thì HTHT : S + have / has + VpII

`\rightarrow` `DHNB` : for

`2`.We will have a meeting tomorrow

`\rightarrow` Thì TLĐ : S + will + V

`\rightarrow` `DHNB` : tomorrow

`3`.It's ages since I last had a Chinese meal

`\rightarrow` It + is / has been + time + since + S + last + Ved / V2 : Đã bao lâu ... kể từ khi

`4`.When we arrived , David had gone home

`\rightarrow` When + S + Ved / V2 , S + had + VpII

`=>` Dùng để diễn tả hành động xảy ra trước trước khi có hành động tiếp theo xảy ra

`5`.Helen's flight arrives at `8.00`

`\rightarrow` Thì HTĐ : S + Vs / es

`=>` Dùng để diễn tả về hành động sẽ xảy ra theo Lịch trình

`\text{# TF}`