"Early" is an adverb when it modifies a verb, indicating the timing of an action, such as in the sentence "She arrived early." It can also function as an adjective when describing a noun, as in "the early train." In both cases, its meaning relates to timing, but its grammatical role differs depending on its usage in a sentence.
The word "early" is an adverb, which may also be used as an adjective (e.g. early breakfast). There was a now-obsolete adverb, earlily.
Adverb
outside
Yes the word "early" can be both an adjective and an adverb.
It can be either. Or also a preposition, or a noun. outside chance, outside wall - adjective stepped outside - adverb outside the lines - preposition the outside of the cup - noun
Yes it can be an adverb and adjective.
Adverbs
Yes, here's an example:The runner started early.
Early
The adverb in the sentence is outside which modifies the verb 'worked'.
Yes, it can be an adverb, or an adjective when used with a noun. The farmer wakes up early. (adverb, modifies wakes) The doctor has an early appointment. (adjective, modifies appointment)
There are no adverbs in this sentence. Mom = noun is = auxiliary verb waiting = gerund outside = preposition adverb for = preposition them = object pronoun. "outside" can be used as a preposition, but here it's an adverb