Hi everyone

My name is Yana and I'd like to improve my english, I need it for my professional life. I think it's very important today to speak some foreign languages for find a good job because we live in the world of multinationals corporations.

Hi everyone

My name is Yana and I'd like to improuve improve my english, I need it for my professional life (you can also use the word 'career', which sounds a bit more natural). I think it's very important today to speak some foreign languages for to find a good job, because we live in the a world of multinationals corporations.

hi Hi everyone

My name is Yana and i'd I'd like to improuve improve my english, i I need it for my professional life. I think it's very important today to speak some foreign languages for find finding/getting a good job. Because because we live in the/a world of multinationals multinational corporations.

"I" is always capitalised. You can also use "a" instead of "the" before 'world'.