Stamered or Stammered: How To spell?

The word Stamered is misspelled against Stammered, which is past tense of "Stammer"

Stammered has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings sta & ered which should not be misspelled with single 'M'
Wrong Spelling:  sta-m-ered 
Correct Spelling:  sta-mm-ered 
Explore spell check of Stammered to spell without errors.

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