Parts of Speech for Once upon a time
once up·on a time
O o Gramatical Hierarchy
Grammatically "Once Upon a Time" is a idiom. But also it is used as a adverb.
All about once upon a time Download all about once upon a time in pdfGrammatically "Once Upon a Time" is a idiom. But also it is used as a adverb.
All about once upon a time Download all about once upon a time in pdf