BCM

Regardless of all other opinions "learnt" isn't a "real" word. It is a question of tense. Not all words are tensed the same. The Learn is tensed: Learn - Learning - Learned. Not to be confused with Spend: Spend - Spending - Spent. If you wish to be considered intelligent use "learned", if you wish to be considered simple use "learnt". As an aside, when one refers to a person as learned (lear-ned, as in my esteemed and learned friend) it is a shift of the emphasis not a difference of spelling from learned (past tense), they are called hetero-phones and are spelled the same but pronounced differently and mean different things. (ie: lead or lead or lead) Happy Writing....