It is common for people to forget most of what they have studied.When studying languages for instance, repeat what you read aloud - especially the conversations - and then think of different ways of engaging in conversations by applying what you have just learned.Some studies indicate that people have the potential to retain close to one-hundred percent of what they have read by applying one or several of these techniques.One way to do this is to revise what you have just read, preferably, within ten minutes of reading it. Another way to improve your chances of retrieving that information at a later date is to ask yourself questions about what you have read.To begin with, don't just read passively, instead, actively process what you are trying to learn and review the information regularly.It's up to you.