The silo might have blown up.Thanks, in advance.
The verb is might have blown up. The might is a modal auxiliary. Its form is subjunctive, but its meaning is permissive. This combination changes the mode of the remaining verb phrase from indicative to potential. Can this word be used as a verb on its own? It might. The have is an auxiliary that establishes the present tense and allows the perfect aspect. Can this word be used as a verb on its own? I have. The blown up is the base verb. It establishes meaning. Its past participle form establishes the perfect aspect. Can this phrase be used as a verb on its own? Opinions differ, but some people blow up if you suggest otherwise. That construction is sometimes called a phrasal verb. The meanings of to blow and to blow up are completely different -- as different as to exhale and to explode. You can regard up as an essential adverb, or you can consider blown up to be an idiomatic verb of its own. The underlying nature of the language remains the same, but different authorities describe this nature in different ways. These days, I parse that sentence as follows: - the silo -- common noun, subject of might have blown up - might have blown up -- phrasal verb, intransitive, active voice, present tense, perfect aspect, potential mode
Of course its blown ... the verb is blow ...... and up acts as an adverb.
blown Consider other forms - the silo blew up, the silo will blow up, the silo didn't blow up - the silo might blow up etc - the only 'action' word is blow.
Principal / main verb- blown. Base form- blow, Past tense- blew. up is an adverb. Subject- The silo Might have-auxiliary verb used to reflect unfulfilled desire or something like this.
blown is the verb--up is the adverb
