He must go there in order to sing wonderfully
In the above sentence, i have a couple of doubts. They are as follows :
1.isnt 'in order to' alone a phrasal preposition (& not subordinate conjunction )?
2.isnt 'sing' alone an infinitive ?
3.Am I correct in saying that we can not group 'to' & 'sing' together here to say that 'to sing' is an infinitive ?
4.isnt 'must go there in order to sing wonderfully' the predicate here?
5.isnt 'must go' alone the verb phrase or phrasal verb here?
6.isnt 'there in order to sing wonderfully' the complement of the intransitive verb 'go'?
7.isnt 'in order to sing wonderfully' the adverbial clause (of purpose) here?
8.isnt 'there' a simple adverb here ?(in relation to 'go')
9.isnt phrasal verb different from verbal phrase?
10.isnt phrasal preposition different from prepositional phrase?