It depends. In the case of "A collapsed building." it is an adjective.
It can however be used as the past tense version of "to collapse" as in "I collapsed" or "This building collapsed yesterday." in which case it is indeed a verb.
yes
collapsed
No. The word collapsed is the past tense of the verb "to collapse" (as in "the building collapsed during an earthquake"), or it can be an adjective describing a structure that has already fallen down (as in "the explorers carefully made their way through the collapsed temple").So collapsed is not an adverb, but a verb or an adjective.
That is the correct spelling of "collapse" (to fall down, or a failure, or to faint).
The noun 'cave-in' is a singular, common, concrete, compound noun.The compound noun 'cave-in' is made up of the verb 'cave' and the adverb 'in' to form a noun meaning the a place where the earth has collapsed or the collapse of a structure; a word for a thing.The term 'cave in' can also be a verb+adverb or a noun+preposition, depending on use.Examples:The street was closed due to a sidewalk cave-in.(compound noun)They refused to cave in to the workers demands. (verb+adverb)The mummies were discovered in a cave in Chile. (noun+preposition)
The noun 'is' is a verb, a form of the verb 'to be'. The verb 'is' functions as an auxiliary verb and a linking verb.
collapsed
No. The word collapsed is the past tense of the verb "to collapse" (as in "the building collapsed during an earthquake"), or it can be an adjective describing a structure that has already fallen down (as in "the explorers carefully made their way through the collapsed temple").So collapsed is not an adverb, but a verb or an adjective.
Collapsed = the active mood of the past tense of the verb 'collapse' - meaning to fall down.
Collapsed = the active mood of the past tense of the verb 'collapse' - meaning to fall down.
Collapsed = the active mood of the past tense of the verb 'collapse' - meaning to fall down.
An adjective modifies a noun. The adjective forms are collapsible and collapsed.The collapsible sofa becomes a bed.The collapsed barn would have to be rebuilt.
The synonym for collapsed is fell.
The building collapsed in the earthquake.
No it wasn't seen before they collapsed, it was seen and photographed just after they collapsed.
A massive collapsed star is a dead star.
The European Union has not collapsed. It still exists.
The western half of the Roman empire collapsed in 476 AD.The western half of the Roman empire collapsed in 476 AD.The western half of the Roman empire collapsed in 476 AD.The western half of the Roman empire collapsed in 476 AD.The western half of the Roman empire collapsed in 476 AD.The western half of the Roman empire collapsed in 476 AD.The western half of the Roman empire collapsed in 476 AD.The western half of the Roman empire collapsed in 476 AD.The western half of the Roman empire collapsed in 476 AD.