The correct way to say that is, he sat beside her.
Little Miss Muffet was eating curds and whey when the spider sat beside her.
with
beside
I sat beside my best friend waiting to see the nit nurse at school.
A spider sat down beside Miss Muffet.
The book is beside the door... Stand beside me... That's beside the point...
station is located beside coconut & mango tree
A spider. Little Miss Muffet sat on a tuffet, Eating her curds and whey. There came a big spider, He sat down beside her. And frightened Miss Muffet away!
Mom was beside herself with anxiety when you broke curfew last night. Don't fear the consequences as I'll be right beside you.
A noun or a verb. 'I sat beside the brook to eat my Sandwiches' (noun). 'I will brook no interference in my affairs' (verb).
Little Miss Muffet sat on a tuffet eating her curds and whey along came a spider, who sat down beside her and frightened Miss Muffet Away!
It can be both. Examples: Jim leaned his can beside his chair. Beside the front door sat an ornate lion statue. Jill was beside herself with worry. Besides Mary, Tom and Gina attended the party. "Besides," Charlene quipped, "I wouldn't want to go to her party anyway!"