1) I am very much happy.
2) I am so much happy.
3) I am happy very much.
4) I am happy so much.
Are all of the above sentences correct?
We use the number (1) and (3) every day. But I think the number (2) isn't correct because we can't use "so + much+ adjective ". On the other hand, "so " is interchangeable with " very ". As per the rule, The number (1) is supposed to be wrong. Please give me the explanation in detail. I am so so confused.