Yes. Forward is an adverb modifying the verb "stepped."
Yes
Yes. Forward is an adverb modifying the verb "put."
both
The courageous man stepped forward to fight the dragon.
The word forward is an adverb, an adjective, a noun, and a verb; for example: Adverb: I ran forward to make the play. Adjective: The forward seats have the most room. Noun: The forward scores the most point on the team. Verb: My mother will forward my mail while I'm overseas.
It depends in what type of sentence its in but in general no.
The troops advanced forward.I'll forward you the email.The volunteer stepped forward.
Stepped is a verb. It's the past tense of step.
It can be either. The word "on" can be a preposition, or a standalone adverb (meaning forward). It can also be an adjective.
Yes, it can be an adverb. e.g. They moved forward. It can also be an adjective (a forward position, or a person who is forward). In basketball, a forward is a player, a noun.
Usually only when they begin the sentence. He stepped on a branch while he was walking across the yard (no comma). While he was walking across the yard, he stepped on a branch (comma)
Correctly is the adverb in that sentence.