Vocabulary

Hi there !
I want to talk a little bit about myself on this website but before that, I should to improve my vocabulary and for that I'm going to exposed {no need for past tense; better: 'to show you', or 'to write'} some sentences with vocabulary which {or: 'that'} I need to know
-a corporate action is fundamental in the companies {I don't know what this means}
- in summery it's better to learn phrases than learning words to speak fluently a new language  {better: to speak a new language fluently}
-I have a lot or regarding of respect for my dad
- there are a lot of tools on in my room
-Today I am overcoming a lot of difficulty
Thanks for reading