1 why don't we going shopping
   I suggest going shopping
   Shall we go shopping
2, i suggest watching a movie
   what about wathcing a movie
  why don't we wathing movie
3 in spite of the bad weather, they go for a picnic

1.how about going shopping?
--> why  don't we going shopping
--> i suggest  going shopping
--> shall we  go shopping
2. would you like to watch movie?
--> i suggest watching a movie
--> what about watching a movie
--> why don't we watch a movie
3. the weather is bad. they go for a picinc
--.> in spite of  the bad weather, they go for a picnic