1.We enjoy playing soccer ( enjoy + V-ing)

  We are interested in play soccer( tobe+ interested+in+V)

2.It's good to help poor people(S+ ADj+ to ...)

3.Tom has learned english since 2008( has+ v3/ed)

4.Shall we go to the beach now?(Shall+S+V)

Why don't we go to the beach now? (Why don't +S+V)

Let's go to the beach now (Let's + V)

5.Ba is as the age as Nam( AS.......(N/V/adj).....as)

`1.`

`->` We enjoy playing soccer

`->` We are interested in playing soccer

`-` like + Ving/ To V = enjoy + V-ing = be interested in + Ving 

`2.`

`->` It's good to help poor people

`-` Cấu trúc: It + be + adj + to V 

`3.`

`->` Tom has learned English since 2008

`-` Cấu trúc: S + started/began + Ving + thời gian = S + have/has + V3/ed + since/for + thời gian 

`-` Tom là số ít → has

`4.`

`->` Shall we go to the beach now?

`->` Why don't we go to the beach now?

`->` Let's go to the beach now 

`-` What about + Ving = Shall we + V1 = Let's + V1

`5.`

`->` Ba is as old as Nam

`-` Cấu trúc: S + be + as + adj + as + N/pronoun

@Càng