I saw that both "dieing" and "dying" can be used as the present continuous of "to die". What is the most common one ? And why is "dying" also correct ?
(Not a teacher)
(Talking about the verb 'to die' as in - to cease to live) I've never seen 'dieing' used as a spelling of 'dying'. I only know 'dying' to be correct.
There is another verb - to die - which means to cut with a die (a die is a blade/sharp implement used to cut material in industry). The progressive form of this verb is 'dieing', but I doubt it is used a lot outside factories.
[Edit] - Others seem to be saying dieing is not a word, so I'm adding this link to dictionary.com. The entry is definition 2.