1/My family and I will go to the Museum next weekend.
2/I am going to play the guitar in the concert next weekend.
3/My mother will go to Ho Chi Minh City next weekend.
4/My class will have a mini test next weekend.
5/My dad is going to have a picnic with his colleagues.
Note:
S+tobe+going to+V-inf:Thì tương lai gần.
S+will+V-inf:Thì tương lai đơn.