Grammatical construction

Hello, Jump4Fun, and welcome to the Grammar Exchange.

@Jump4Fun posted:

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.

The conjunction "that" is omitted, so you do have a main clause, I am glad, and a subordinate one, you are here. "That" introduces an adverbial clause of reason.

Thank you for your reply and your welcome, Gustavo.  I believe you are correct, but I also toyed with seeing "am glad" as the main verb.  I'm a little surprised this threw me, but it did.  Do you have a suggestion how to avoid future confusion with sentences like this?  I'm always open to learning more.

Thanks again

I've been thinking that the "that"-clause can also be said to complementize the adjective "happy." The verb is "am." "Am glad" is the main verb phrase.

Complements can express the reason for the emotion or feeling denoted by the adjective, after adjectives like glad, happy, sorry, pleased, afraid, or function as a content clause after adjectives of cognition, such as sure, certain, doubtful, aware, convinced.