Difference between infinite and finite clauses?

[Edesiusmtb]

i am so sorry because long time do not open my gmail. I know my english is not enough for myself but i always to try the best to improve my english. during holiday i went to many difference place so i can not access the internet and now i can continue to access internet. i hope you understand my situation. i have some question, there are 1. when we use keep in our conversation or our writing? 2. what is the best way to master english? 3. if you don't mind, could you give me some examples and explaination of infinite and finite clause?
i want to share my experience during in semester one and two. do you know my reading and vocabulary class fail because i could not able to reach the goal of this class. i shocked because of the bad mark. in the semester two, i failed in structure material. i got d in this class. it mean that i have to retake it in next semester. now i have new material and almost the materials always have assignment, home work, and work in pair. please help me, because i like english but i always get bad marks. thank you for your attention. see you next time.