Commas with FANBOYS

I enjoy school but I don't like homework.

I enjoy school, but I don't like homework.

I enjoy school school.  But I don't like homework.

I enjoy school, so I don't like homework.

Mom slept late so we were late to class.

Mom slept late.  So we were late to class.

Mom slept late but we were late to class.,

Mom slept late, so we were late to class.

I am good at art, so I will sell it.

I am good at art. So I will sell it.

I am good at art so I will sell it.

I am good at art, yet I will sell it.

Tim either wants to take swim lessons or go rock climbing this summer.

Tim either wants to take swim lessons, or go rock climbing this summer.

Tim either wants to take swim lessons, and go rock climbing this summer.

Tim either wants to take swim lessons. Or go rock climbing this summer.

Fredo's mom, and Gerry's dad got married last fall.

Fredo's mom and Gerry's dad got married last fall.

Fredo's mom or Gerry's dad got married last fall.

Fredo's mom and, Gerry's dad got married last fall.

The little boy cried because he lost his pacifier and his teddy bear at the carnival.

The little boy cried because he lost his pacifier, and his teddy bear at the carnival.

The little boy cried because he lost his pacifier and, his teddy bear at the carnival.

The little boy cried because he lost his pacifier nor his teddy bear at the carnival.

For our date, I either want to go out to the movies or to dinner.

For our date, I either want to go out to the movies, or to dinner.

For our date, I either want to go out to the movies or, to dinner.

For our date, I either want to go out to the movies. Or to dinner.

Tessa had a stomach ache, for she ate too many gummy bears for breakfast.

Tessa had a stomach ache for she ate too many gummy bears for breakfast.

Tessa had a stomach ache, but she ate too many gummy bears for breakfast.

Tessa had a stomach ache for, she ate too many gummy bears for breakfast.

You can find the post office on 7th Street between Burger King and the CVS.

You can find the post office on 7th Street between Burger King, and the CVS.

You can find the post office on 7th Street. Between Burger King and the CVS.

You can find the post office on 7th Street between Burger King and, the CVS.

If I get one more detention, I won't be allowed to attend the pep rally, so I better be well-behaved.

If I get one more detention, I won't be allowed to attend the pep rally so I better be well-behaved.

If I get one more detention, I won't be allowed to attend the pep rally so, I better be well-behaved.

If I get one more detention, I won't be allowed to attend the pep rally. So I better be well-behaved.