Yes, I am sure that I am right
I am sure that I speak English well
I am sure that I don`t make mistakes
I am sure that I am clever
I am sure that I know Word well
I am sure that I understand my friends
I am sure that my friend was born on 2 of November
I am sure that it is 3 o`clock now
I am sure that it is not cold in the street
I am sure that my colleagues like me
I am sure that my advice is always good