1.1. I spend two hours cycling every day

−- S + spend/ spends/ spent + khoảng thời gian + V_ing

−- It + takes/ took + O + khoảng thời gian + to + V_inf

2.2. I haven't seen Bob for two years

−- S + has/ have + (not) + V_ed/ V3 + for + khoảng thời gian

−- The last time + S + V_ed/ V2 + was + khoảng thời gian + ago

3.3. Although Kim eats fruits and veggies every day, she keep gaining weight

−- Although + S + V, S + V (Hai mệnh đề đối lập nhau)

−- S + V, but S + V (Hai mệnh đề đối lập nhau)

4.4. We all think making pottery is difficult because it takes a lot of time

−- S + think/ thinks + V_ing + is + adj

−- S + find/ finds + V_ing + adj

5.5. How long have you learned English?

−- When + did + S + start + V_ing?

−- How long + have/ has + S + V_ed/ V3?