What part of speech is "based on?"

This might be looked at as the combination verb, "to be based on," as in, for example:

"The study was based on observations over several years." ("The study" is subject, "was based on" is the verb in past tense, "observations" is the direct object of the verb, and "over several years" is a adjectival prepositional phrase modifying "observations.")

"My conclusions are bas

AnonymousWhat part of speech is "based on?"

"Part of speech" only applies to one word at a time. You can't name a part of speech for two or more words in a group.

'based' is an adjective and the past participle of the verb 'base'.

'on' is a preposition.

CJ

Based is an 'adjective' and 'on' is preposition