Adding -ing/-ed

Often we need to add -ing or -ed to a verb to make other forms of the verb, for example:
I was talking when John arrived.

Spelling Rule
Just add -ing or -ed to the end of the base verb:

Exceptions

If the base verb ends in:	do this:	and add:	For example:
consonant + vowel + consonant *and* a stressed syllable	double the final consonant	-ing -ed	stop > stopping > stopped begin > beginning tap > tapping > tapped But, for example: open > opening > opened (because no stress on last syllable of open)
consonant + -e	remove the -e	-ing -ed	phone > phoning > phoned dance > dancing > danced make > making rake > raking > raked dye > dying > dyed
-ie	change the -ie to -y	-ing	lie > lying die > dying
-ie	nothing	-d	lie > lied die > died