Rule 7.

Initial k before n is silent--_k_nife.

knee knew know
knack knot knock
knob knell knife
knelt known kneel

Rule 8.

Initial w before r is silent--_w_rite.

wry wren written
wring wreak wrist
wrong wrote wriggle
write wretch wrench
wrap wreath writing

Rule 9.

Initial g before n is silent--_g_naw.

gnat gnarl gnu
gnaw gneiss gnome

Rule 10.

C before e, i or y is soft.--cent, city, cypress.