If you want to describe an emotion in the present tense we use feeling + emotion/mood rather than the continuous form (to be + ing) We don't usually use continuous forms with emotions/moods and state verbs: State verbs are those that describe something that stays the same: For example I am English - (this never changes) I am happy (this is my emotion now, or in general - I am a happy person) I am speaking English (at the moment) I am feeling happy (at the moment - but I might not be happy tomorrow) Hope that helps Helen

"I'm angry" is better. You would not really use the first one in normal conversation. :-)

There really isn't a difference. Both are expressing anger in the present tense. In my opinion you would tend to say "I'm angry" as "I'm being angry" would sound a tiny bit unusual in most situations.