Something I always come across:
Kate: So, what are your plans for the weekend?
Student: I go to the zoo on Sunday.
[I will go to the zoo on Sunday.][ I'm going to the zoo on Sunday.] are better for bringing the idea across. Why?
Kate: So, what are your plans for the weekend?
Student: I go to the zoo on Sunday.
[I will go to the zoo on Sunday.][ I'm going to the zoo on Sunday.] are better for bringing the idea across. Why?
The American English at State Facebook page provides lots of learning resources. It is a good way to remind yourself of the common usages of English or to learn them if you have not. All these while browsing your facebook! I do use a lot of their resources as they draw out the differences simply and clearly.
So, do take and look and like their page if you find it helpful!