The verb in the sentence is are, in the 3rd person plural form of the verb to be
It is an adverb modifying the verb (playing).
action verb
There is no preposition in that sentence. I is a pronoun, waited is a verb, and outside is an adverb.
There really isn't one, since "outside" is generally a noun or a preposition -- but you can create a phrase by using a verb like "to go" or "to look" or "to wait." For example: My sister will go outside and get the mail. David looked outside because he heard a noise. They waited outside for their friends.
"Outside" is often an adverbial (modifies a verb) but it is also a noun.As an adverb: The tree is outside the fence.As a noun: The outside of the box was smooth.
The adverb in the sentence is outside which modifies the verb 'worked'.
To go
A linking verb is a verb that link two parts of a sentence. The most common linking verb is to be. For example:I am here.They will be arriving soon.We were outside at the time.A verb phrase is a verb with a preposition following it. For example:Stand up.Sit down.Look ahead.Go back
There are 2: go & shout.
The adverb in the sentence is outside, which modifies the verb 'will be eating'.
Adverbs modify verbs the verb in this sentence is wait