- Used with an adjective or adverb before an infinitive to show a result. Who could be so mean as to do a thing like that? Ruth wouldn't be so careless as to forget her pen.
Compare: SO --- THAT.
- Used with an adjective or adverb before an infinitive to show a result. Who could be so mean as to do a thing like that? Ruth wouldn't be so careless as to forget her pen.
Compare: SO --- THAT.
American idioms English vocabulary. Английский словарь американских идиом. 2012