Common Mistakes : Period

Period – Noun

 BAD: These traditions took a long period of time to evolve

GOOD: These traditions took a long time to evolve

BAD: She needs somewhere to live for a period of time

GOOD: She needs somewhere to live for a while

a (long/short) time/while (WITHOUT period ): ‘You can stay here for a while, if you like. Learning a foreign language can take a very long time