mustn’t
must
water and care the plants
water and care the plants
You must water and care the plants.
recycleyour rubbish into
paper, glass and plastic containers.
recycle your rubbish
glass, paper and plastic containers.
You must recycle your rubbish into
glass, paper and plastic containers.
into
plant trees and flowers
in the parks and your house.
plant trees and flowers
in the parks and your house.
You must plant trees and flowers in
the parks and your house.
throw rubbish on the floor.
throw rubbish on the floor.
You mustn’t throw rubbish on
the floor.
smoke at all.
smoke at all.
You mustn’t smoke at all.
fire things in the streets.
fire things in the streets.
You mustn’t fire things in
the streets.

Must and mustn't