Infinitive （不定詞） Gerund （動名詞）

https://webliomaterials.files.wordpress.com/2016/01/gerundinfinitive1.pdf

I want to have a burger.
Okay, would you like
to have anything else?
Okay, I'll have that and a bottle of juice to go with it

write
would you give me something to write?

buy
I will go there to buy some clothes

speak
To speak English fluently is my dream