I can't help it.
The person does what ever it is not on their own accord.
The person does it of their own accord.
A boy is climbing a tree.
Congress wanted nothing to do with Enron.
The painter could not tell me a rough guess.
The man is asleep on the sofa.
There is more than one horse present.
Poirot complimented me on my great idea that resulted in solving the mystery.