EF4/5 Compound sentences

Jericho Beach was windy yesterday, but North Van wasn't.
It was a beautiful day, so we went to Wreck Beach.
The kids played in the park, and we walked around.
We had a barbecue, but I burned the hamburgers.
We had a barbecue, and I got burned.
I wasn't  paying attention, so I burned my forearm.

upper arm

She had a barbecue, and she cooked salmon, potatoes, and fish.

She wrapped the salmon and potatoes in tinfoil/ aluminum foil, so it was very tender.

She slow-roasted a pork shoulder at 225 degrees for eight hours, so it was delicious.

He was vegan for ten years, but now he is not.

SOBA so or but and
FANBOYS for nor yet- uncommon

She is wearing a hat, for it is sunny today. UNUSUAL
It is sunny today, so she is wearing a hat. USUAL

He doesn't play soccer, nor does he play volleyball. UNUSUALLY FORMAL
He doesn't play soccer or volleyball. REAL ENGLISH

It is hot today, yet she is wearing a sweater.
It is hot today, but she is wearing a sweater.

SV , SOBA SV.

semicolons ;

therefore
however
also
otherwise
for example

It is hot today, but she is wearing a sweater.
It is hot today; however, she is wearing a sweater.

It is sunny today, so she is wearing a hat.
It is sunny today; therefore, she is wearing a hat.

She had a barbecue, and she cooked salmon, potatoes, and fish.
She had a barbecue; also, she cooked salmon, potatoes, and fish.

He plays basketball, and he plays soccer.
He plays basketball; also, he plays soccer.

He plays soccer and basketball. SIMPLE
He play soccer, and he plays basketball. COMPOUND


or and 
He celebrate Xmas and New Years. SIMPLE
We celebrate Xmas, and we celebrate New Years. COMPOUND