Spelling rules for adding -ly


In most cases,- ly is simply added to the positive form of the adjective. For example:

Adjective

Adverb

bad

badly

complete

completely

surprising

surprisingly


1. Adjectives ending in -ic
When the adjective ends in -ic, the syllable -al is usually added before the -ly ending. For example:

Adjective

Adverb

dramatic

dramatically

scientific

scientifically

specific

specifically



2. Adjectives ending in le
When the adjective ends in -le preceded by a consonant, the final e is usually changed to y, to form the -ly ending. For example:

Adjective

Adverb

favorable

favorably

humble

humbly

simple

simply


When the adjective ends in -le preceded by a vowel, in most cases, ly is simply added to the positive form of the adjective. For example:

Adjective

Adverb

agile

agilely

sole

solely


However, in the case of the adjective whole, the final e is removed before the ending -ly is added:

Adjective

Adverb

whole

wholly



3. Adjectives ending in -ll
When the adjective ends in -ll, only y is added. For example:

Adjective

Adverb

dull

dully

full

fully

shrill

shrilly



4. Adjectives ending in -ue
When the adjective ends in -ue, the final e is usually omitted before the ending ly is added. For example:

Adjective

Adverb

due

duly

true

truly



5. Adjectives ending in -y
When the adjective ends in y preceded by a consonant, the y is usually changed to i before the ending ly is added. For example:

Adjective

Adverb

busy

busily

easy

easily

happy

happily


However, in the case of the adjectives shy and sly, -ly is simply added to the positive form of the adjective:

Adjective

Adverb

shy

shyly

sly

slyly


When the adjective ends in -y preceded by a vowel, in most cases, -ly is simply added to the positive form of the adjective. For example:

Adjective

Adverb

coy

coyly

grey

greyly