Changing verbs and nouns ending in -y or -ie

Changing verbs and nouns ending in -y or -ie

For verbs and nouns ending in -y, change the y to i before endings starting with e:

bury buried

berry berries

For verbs ending in -ie, drop the e and change the i to y:

die dying

lie lying

stymie stymying

tie tying

but

dye dyeing [colouring, to be distinct from dying (ending life)]