$\text{1}$ is waiting

→ Thì HTTD - now

→ S + is/am/are + V-ing + O 

$\text{2}$ is - is reading

→ Thì HTTD - diễn tả 1 sự việc đang xảy ra tại thời điểm nói

→ S + is/am/are + ... 

$\text{3}$ is flying - is going to land 

→ Thì HTTD - Look ! 

→ S + is/am/are + V-ing + O 

→ Thì TLG - diễn tả dự định có căn cứ

→ S + is/am/are + going to + V-inf + O 

$\text{4}$ are going to see - join

→ Thì TLG - tomorrow

→ S + is/am/are + going to + V-inf + O 

→ Will + S + V-inf + O ? 

$\text{5}$ will come

→ S + will + V-inf + O + as soon as + S + V(s/es) + O 

$\text{6}$ fell - broken 

→ Thì Quá Khứ Đơn - sự việc/hành động đã xảy ra trong quá khứ 

→ S + Ved/cột 2 + O  

$\text{@Zyy}$

1, is waiting

2, is - is reading

3, is flying - is landing

4, are going to see - are you going to join?

5, is coming

6, was fell - broke