... ends in ~e, we leave out e before the ending ~ing:
hope/hoping smile/smiling dance/dancing confuse/confusing
Exceptions arc: be/being
and verbs ending in ~ee: see/seeing agree/agreeing
...
6.4 Verbs ending in ~ie (die, lie, tie)
If a verb ends in ~ie, ie changes to y before the ending ~ing: die/dying
lie/lying tie/tying
@p 281
APPENDIX 6
6.5 Words ending in -e (ho...