Could anyone tell me the difference between "seem" and "seem like". I give some speech below, please tell me which one is not idiomatic
It seems like it will rain
It seems that it will rain
It seems to be gonna rain
He seems to be a happy man
He seems like a happy man
He seems that he is a happy man
Thanks
It seems like it will rain
It seems that it will rain
It seems to be gonna rain
He seems to be a happy man
He seems like a happy man
He seems that he is a happy man
Thanks