Of about for with from at I'm not very fond
: I never get bored
These days people are crazy
I'm not very good
Marilyn Monroe was famous
today are different — those in the fifties.
Uhhic and Hic​

present perfect: - we have already calculated the transaction costs
present simple - we calculate the transaction costs.
present continuous - we are calculating the transaction costs.
past simple - we calculated the transaction costs.
past perfect  - we had already calculated the transaction costs. 
past continuous -  we were calculating the transaction costs.
future simple - we will calculate the transaction costs.
 future perfect - we will have already calculated the transaction costs.
future continuous - we will be calculating the transaction costs.

My name is Alice and I want to tell you about my family. My father worked on the railroad, and always comes home very tired. A mother runs a primary school teacher, but she is just as hard as his father, because you have a lot of work that would earn a good salary in the country. My sister is 25, but she behaves like a child and lives one day. As we have a dog and it is also part of our family. We are very fond of her, so she is not done. We rarely manage to stay all together, but if there is such an opportunity, we will certainly use it..