Pertianed or Pertained: How To spell?

The word Pertianed is misspelled against Pertained, which is past tense of "Pertain"

Word contains consecutive vowels 'AI' in between alphabets pert & ned is misspelled as 'IA'
Wrong Spelling:  pert-ia-ned 
Correct Spelling:  pert-ai-ned 
Find more wrongly spelled words of Pertained to spell it well.

You might be interested to know

Priasement or Praisement?

Riad or Raid?

Refrianment or Refrainment?