The word Bestriden is misspelled against Bestridden, which is past perfect of "Bestride"
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Bestridden has double "dd" is mispronounced as "d"
Remember double 'DD' in between the strings Bestri & en which should not be misspelled with single 'D'
Wrong Spelling:  Bestri-d-en 
Correct Spelling:  Bestri-dd-en 
Find more wrongly spelled words of Bestridden to spell it well.