Examples
nǐ你kě可bù kě不可yǐ以bāng máng帮忙chú cǎo除草jiāo浇huā花？
你可不可以帮忙除草浇花？
Could you please pull the weeds and water the flowers?
我需要工具来给花园除草。
I need a tool for pulling weeds in my garden.
汤姆说他以为他今天能够帮玛丽的花园除草
Tom said he thought he'd be able to help Mary weed the garden today.