Here is a great explanation of Learned/Learnt! Valuable to know for copy editors.
In commonwealth countries, people use “learnt” for past tense and past participle for learn. Here’s an explanation from AskOxford on this matter:
What is the difference between ‘learnt’ and ‘learned’?
* Learnt is more common in British English, and learned in American English.
* There are a number of verbs of this type (burn, dream, kneel, lean, leap, spell, spill, spoil etc.).
* They are all irregular verbs, and this is a part of their irregularity.
The *prescriptive* answer is:
“learned” should used in phrases such as “a learned professor”, in which case it is pronounced with two syllables.
“learnt” should be used in phrases like “I learnt a valuable lesson today”.
The *descriptive* answer in British English is:
“learned” is used in phrases such as “a learned professor”, in which case it is pronounced with two syllables.
Either “learnt” or “learned” are used interchangably in phrases like “I…
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