The one that has CLARITY is, "I INTEND TO...." This is your intention, plan, what you mean to do. Example: "I intend to do all my housework tomorrow!" Well, it's my intention, but knowing me, I probably won't do it! The other one is a little ambiguous. It could be your intention, or it could be a fact. It probably depends on your INTONATION/emphasis/tone of voice. Example: "I'm GOING TO DO ALL MY HOUSEWORK tomorrow!" Well, this is my intention, but I'm afraid I might not do it all. I might not even start it! I'm lazy. But I certainly INTEND to do it! OR, it could be a FACT. "I'm going to finish my housework at 3 p.m." Decision made! I suppose it is also my plan, but it's pretty certain to happen. Even more certain: I'm going to finish college in 3 years' time (because that's when the course ends - the college has set the date - it's a fact - you may not have passed the exam - but the course ends then!)

I agree with Sergey, that it's a good idea to change "finish my college" to "graduate from my college". "Finish my college" sounds like you're in the process of building it. :D There really is very little practical difference between the two expressions from a grammatical and logical point of view. But the first one sounds much more natural and normal to me. Saying you "intend" to do something is implying that there's a reasonable doubt that it'll happen. If someone said the second one to me, it would make me want to know more about that implication.

Hi I'd improve this sentence to I WILL finish college in three years. Why? Well it seems like this is a statement,fact,a given that it will happen. The second sentence with the use of INTENDED, can imply you'd like to finished in three years. It could be there are more options, and you could finish earlier or later but you INTEND to finish in three. That's your idea. Intend= a desire or want Will = certain and for sure. Hope this helps

In the first one you are sure but in the second one that's your idea, your intention but maybe you are having problems or there's something that makes you be not as sure as in the first one. Feel free to book a lesson and we can practice more. Have a nice day.

i am going to finish my college after three years>> you already will finish your college after three years i intend to finish my college after three years>>> you only want or plan to finish your college,,,,