I'm curious about the grammatical construction of this sentence: I am glad you are here. It appears to contain 2 independent clauses, which doesn't seem right (no conjunction) . Possibly "that" is understood which would make the second clause dependent, but again, that really doesn't seem right either. I've tried diagramming it, but I can't make it work properly. I guess I'm just missing something. I'm betting someone here can explain this sentence's construction. Thanks for your help.