Simple Future

	Will+base verb	Be going to+base verb	Be+-ing verb(present progressive form)
Use	Use when deciding future plans at the moment	Use when future plans have already been made	Use when future plans have already been made
Notes	Formal future form(preferred in writing; it may be used formally even when plans have already been made)	Casual future form(preferred in speaking; most common form; going to is often reduced to gonna)	Casual future form(preferred in speaking; used especially for the near future)
Example Statement	Yes, I will go to the movies with you tonight.	He is going to study all weekend for his test.	She is giving her presentation tomorrow.
Example Negative	No, I won't be ready to go at 5:00.	They are not going to go to the party because they have school tomorrow.	We are not leaving until we get an answer.
Example Question	Will you call me later?	Is she going to read that entire book tonight?	Are they coming over for dinner on Friday?

Future tense

I'm going to write this down.

I've decide to buy a new computer.

I intend to move to Seoul.

I'm planning on getting a part-time job.

I'm thinking of learning Japanese.

I might go fishing.