Decresed or Decreased: How To spell?

The word Decresed is misspelled against Decreased, which is past tense of "Decrease"

Decreased has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets decr & sed is misspelled as 'E'
Wrong Spelling:  decr-e-sed 
Correct Spelling:  decr-ea-sed 
Explore spell check of Decreased to spell without errors.

You might be interested to know

Disfeture or Disfeature?

Drem or Dream?

Enderedness or Endearedness?