How it works
And adds information, but contrasts ideas, or presents alternatives, so introduces a result and because gives a reason. A because clause needs a main clause. Do not normally pair because and so to link the same two clauses.
Examples in context
Notice how each form fits its sentence. Read the context before choosing a form.
- I stayed home because I was ill.
- It was cold, so I wore a coat.
- Would you like tea or coffee?
- She is tired but happy.
- We bought bread and milk.
