Pepitopalotes

1 The company can do whatever he likes with his money.

** The company can do whatever it likes with its money ('company' is not a person)

2 The reason of this problem is very complex.

**The reason about this problem is very complex. (about = 'sobre')

3 I was aware what it was happening during the whole jump.

** I was aware what was happening during the whole jump ('what' is thepronoun already)

4 The government has borrowed money to the banks.

** I think it's correct.... ¿?

5 Zara actions are now worth 100euros each.

** Zara shares (or stock) are now worth100euros each.

6 It was the highest jump I have never seen.

** It was the highest jump I have ever seen. (I think that 'never' can't be used with a superlative adjective)

7 I ran across aninteresting article in the newspaper the other day.

** I found an interesting....

8 Life is getting more and more complicate.

** Life is getting more and more complicated. (adjective must end with'ed')

9 If I’ll have the opportunity I’d go to the USA.

** if I could have the opportunity i'd go to the USA. ('ll is contraction of will, future, is not correct here)

10 I’d like to go on atrek to Nepal instead of study abroad.

** I'd like to go on a trek to Nepal instead of studying abroad. (we use present continuous )

11 Spending a year abroad is a good way to develop like aperson.

** Spending a year abroad is a good way to develop as a person.
('like' and 'as' means 'como', (preoposition), but 'like' is used when you want to compare, and 'as' when you want to describe aquality or a property)

12 Living abroad is an unique experience.

** Living abroad is a unique experience. (oops... we must use 'a' instead of 'an' before 'unique')

13 If I went abroad Iwould choice Paris.

** If I went abrod I would choose Paris (choice means 'elección', it's a noun, not a verb)

14 The actual economic situation means that many young people are moving abroad to...