Complex sentences :
1.Although my friends begged me, I chose not to go to the reunion.
2.I learned English perfectly because I studied very hard.
3.Many people enjoyed the movie; however, Alex did not.
4.Although the farmer is ready, the ground is still too wet to plow.
5.If the ozone layer collapses, the global community will suffer.
6.Although I’m not very good, I really enjoy playing football.
Compound sentences:
She goes to the beach, and she takes her cat.
Although Michael reads novels, Joly reads comics.
As Alex was arriving to work, he realized he forgot his lunch.
We were lost in the woods, but my brother had a map in his backpack.