Doubling Rule
Drop the E Rule
Change the Y to I Rule
More Doubling and Dropping
100

big + er

bigger

100

slide + ing

sliding

100

copy + ing

copying

100
shop + ing
shopping
200

jump + ing

jumping

200

cute +er

cuter

200

hurry + ed 

hurried 

200
take + ing
taking
300

hop + ed

hopped

300

smile + ed 

smiled

300

tasty + er

tastier

300

quit + ing

quitting


400

slip + ing

slipping

400

invite + ing

inviting

400

copy + er

copier

400

help + ed

helped

500

begin + ing

beginning

500

include + ed

included

500

annoy + ing

annoying

500
make + er
maker