I am allergic to cats, so/yet I have 3 of them.
Yet
They couldn't think of anything to do. They did their homework.
They couldn't think of anything to do, so they did their homework.
She went to work. She did not want to go.
She went to work, but she didn't want to go.
He can buy that book. He can borrow it from the library.
He can buy that book, or he can borrow it from the library.
You can eat cake with a spoon or/for a fork.
Or
Tom studied a lot. He didn't pass the test.
Tom studied a lot, but he didn't pass the test.
My dog loves toys nor/and treats.
and
I want to swim, and/but it's too cold.
but
She was sad, for/and she lost her doll.
For
We can watch a movie or/yet play videogames.
or
Polar bears are fierce, dangerous animals. Grizzly bears are the same.
Polar bears are fierce, dangerous animals, and grizzly bears are the same.
The scientists taught him well. They helped him find a job after he finished school.
The scientists taught him well, and they helped him find a job after he finished school.
I don't feel well, so/and I will go to the doctor.
So
Jennifer doesn't like soccer, nor/but baseball.
nor
I will not fight you. I will not let you push me around.
I will not fight you, nor will I let you push me around.
I would love to see that movie with you. It looks great.
I would love to see that movie with you, because it looks great.
A book can be fun to read. A book can be boring.
A book can be fun to read, or a book can be boring.
I wanted to go to the beach, but/yet my car doesn't work.
but
My cat was hungry. It had not eaten since breakfast.
My cat was hungry because it had not eaten since breakfast.
Would you like soda or/so water?
or
She put on a sweater. It was cold outside.
She put on a sweater because it was cold outside.
She is funny and/for intelligent.
and
He loves to drive during the day. He always drives before sunset, not after.
He loves to drive during the day, so he always drives before sunset, not after.