If I have studied math when I was young, may be now I would be an enginner.
I should have woken up at 5 am, but I went to bed at 11 pm. last night so I woke up at 7 am this morning.
I told my mother that I did not want to help her cook food, but she told me she needed my help.
Don't say that.
He comes to athink, I will come to think.
If it is not possible for him to come, then I will come.
When I was a small boy, I would go to the lake in the summer.
What was your favourite paper at the conference.
I have met Mandiradi at the terrace at 3:45 in the afternoon.
You shall call your mother before you go to class.