What Is Their Main Difference?
'Began' is the simple past tense of the verb 'begin', whereas, 'begun' is the past participle. Look at the following examples:
The new manger has officially
Both are past forms of the verb 'begin.' Check out the examples below:
They have already
Are They Interchangeable?
Since they have different grammatical functions, they cannot be used interchangeably. Compare:
This sentence is grammatically incorrect.