Countersailing or Countersealing: How To spell?

The word Countersailing is misspelled against Countersealing, which is present continuous of "Counterseal"

Countersealing has vowels 'ea' together mispronounced as 'ai'
Word contains consecutive vowels 'EA' in between alphabets counters & ling is misspelled as 'AI'
Wrong Spelling:  counters-ai-ling 
Correct Spelling:  counters-ea-ling 
Check more misspelled words of Countersealing to spell it correct.

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