- some time
- sometime, some time1. Sometime, spelt as one word, is an indefinite adverb with two main meanings: (1) ‘former’, as in their friend and sometime partner, and (2) ‘at some time in the future’, as in I'll tell you about it sometime. When some and time both retain their separate meaning, they are spelt as two words: We need some time to reflect / This has been known for some time.2. Sometime is also used to mean ‘occasional’, especially in the phrase a sometime thing, but this use is not standard:
• The Federal bureaucracy has grown unwieldy and party discipline in Congress is a sometime thing —Newsweek, 1980.
Modern English usage. 2014.