This is my yawn song. (the , means to breathe for 1 second)
Do you know why do we yawn, no one really knows the answer
Many people say that we yawn, because were tired and bored
However people also yawn, when they are excited or nervous
Olympic runners for example, often run before a race
We do know that everyone yawns in the same way
First open our mouth slowly, then stay open for five seconds
But scientists don't spend much, time studying about yawning
Maybe because yawning doesn't hurt, it is just something we do
It is just something we do
The end
Excellent. Only two minor mistakes. I think your writing is improving all the time. Soon you will be like a native speaker, only better! :D
Carrie
Do you know why do we yawn, no one really knows the answer
Many people say that we yawn, because we're tired and bored
However people also yawn, when they are excited or nervous
Olympic runners for example, often run before a race
We do know that everyone yawns in the same way
First open our mouth slowly, then stay open for five seconds (we would say keep your mouth open not stay open, so in this case maybe keep it open would be better)
But scientists don't spend much, time studying about yawning
Maybe because yawning doesn't hurt, it is just something we do
It is just something we do
The end