Perhaps they saw something I don't know but suddenly Mrs. Vandemeyer said 'Now,'  
They might have seen something, but I couldn't tell.
None of them could have seen anything.
No one of royal blood had ever slept on the bed.
The soccer team scored 0 points.
Everybody is treated equally and fairly in the current income tax system.
There are people getting on a tour boat.
Lots of artists aim for something big.
A person feeds birds outside.