Here are the verb moods identified for each of the sentences:
-
If the weather improves, we will go to the beach tomorrow.
Verb Mood: Indicative (conditional, as it presents a possible situation) -
Please close the door quietly.
Verb Mood: Imperative (as it is a command) -
I have a dentist appointment on Monday.
Verb Mood: Indicative (as it states a fact) -
If I were a bird, I would fly across the ocean.
Verb Mood: Subjunctive (as it expresses a hypothetical situation)