accept vs except
Accept is a verb, which means to agree to take something .
For example: "I always accept good advice."
Except is a preposition or conjunction, which means not including.
For example: "I teach every day except Sunday(s)."
advice vs advise
Advice is a noun, which means an opinion that someone offers you about what you should do or how you should act in a particular situation.
For example: "I need someone to give me some advice."
Advise is a verb, which means to give information and suggest types of action.
For example: "I advise everybody to be nice to their teacher
affect vs effect
Affect and effect are two words that are commonly confused.
affect is usually a verb (action) - effect is usually a noun (thing)
Hint: If it's something you're going to do, use "affect." If it's something you've already done, use "effect."
To affect something or someone.
Meaning: to influence, act upon, or change something or someone.
For example: The noise outside affected my performance.
To have an effect on something or someone
Note: effect is followed by the preposition on and preceded by an article (an, the)
Meaning: to have an impact on something or someone.
For example: His smile had a strange effect on me.
!Effect can also mean "the end result".
For example: The drug has many adverse side effects.
And other mistake:
http://www.learnenglish.de/mistakes/CommonMistakes.htm
