Learning english (English)

I have been studying English since primary school level.I am very interested in English language. I want to be skillful in writing English such as official letter writing, essay writing like a very noble writing(writer).But I have done(I make) many mistakes in my writing. They are related to prepositions and vocabulary. Regarding speaking, I've thought how to (I practice to)translate Burmese words to(into) English words.So I am always used(I always use) dictionary for my language assistance.But when I am speaking in English, used of dictionary is impossible. So what is important in speaking? vocabulary? Grammar? and what is important in writing? I am a Myanmar lady from Burma (Myanmar).

Though, I have tried to correct your mistakes but I if you find any mistake in my corrections, then please let me know so that I can remove it.

If you want to be a good speaker so my advise is that you should practice as much as you can with someone who knows English well. And don't worry about the mistakes you make, you will overcome it automatically. As far as your writing is concerned, you should read alot which can help you for sure.

If there is something else you want to ask, you are welcome.

Learning english

In my life, I have been studying English since I was in primary school level. I am very interested in the English language. I want to be skillful skilled in writing in English. I want to be good enough to  write essays and formal letters. writing like a very noble writing. But I have done many mistakes in my writing. They are prepositions and vocabulary.  Unfortunately I make a lot of mistakes when I write in English.  I have trouble with the prepositions and vocabulary. With regard to speaking the language, I try and think of how to  Regarding with speaking, I've thought how to translate Burmese words into English words.  So I am always used a dictionary for my language assistance to assist me. But when I am speaking in English, used of dictionary it is impossible to use a dictionary.  So what is important (what can help me) when learning to speak English? Vocabulary? Grammar? And what is important to learn/practice when writing in English? I am a Myanmar lady from Burma (Myanmar).