ie and ei 

i before e, except after c- or when sounded like a, as in the words neighbor and weigh

EXCEPTIONS

"ie": ancient, conscience, effecient, policies, species, science, society, sufficient

"ei": either, foreign, height, leisure, neither, protein, seize, weird

Suffixes for words ending in e

If a word ends in a silent e and the added suffix begins with a consonant, then keep the letter e when adding the suffix

Example

awe+some = awesome

hate+ful = hateful

NO EXCEPTIONS!

Suffixes for words ending in e (part 2)

If a word ends in a silent e and the added suffix begins with a vowel, then drop the letter e when adding the suffix

Example

age+ing = aging

EXCEPTIONS

If the word ends in -ce or -ge or -ous, then keep the letter e 

change+able=changeable

" " adding -ing, keep silent e if possible ambiguity

singe+ing=singeing (not singing)

suffixes for words ending in y

If a word ends with a y preceded by a vowel, keep the y when adding a suffix

annoy+ance=annoyance

suffixes for words ending in y (part 2)

If a word ends in a y preceded by a consonant, change the y to an i before adding a suffix

carry+ed=carried

Exceptions

" " suffix being added is -ing, keep the y

carry+ing=carrying

Suffixes for words ending in a consonant-vowel-consonant

In general, if a word has one syllable and ends with a consonant-vowel-consonant pattern, then double the final consonant before adding a suffix that begins with a vowel

bag+ing=baggage

Suffixes for words ending in a consonant-vowel-consonant (part 2)

In general, if the word has more than one syllable, the accent is on the last syllable, then double the final consonant before adding a suffix that begins with a vowel

compel+ing=compelling

Suffixes for words ending in c

In general, if a word ends in a c and a suffix beginning with e, i, or y is added, then the letter k should be inserted follwing the letter c.

colic+y=colicky

Words ending in -ceed, -sede, and -cede

In English there are four words that end in -ceed, and one word that ends in -sede. Other words with the same sound end in -cede.

-ceed

emceed, exceed, proceed, succeed

-sede

supersede

-cede

accede, antecede, concede, intercede, recede, retrocede

Words ending in -able or -ible

In general, if the root word is a complete word, then add -able. (If the root ends in e, drop the e before adding      -able.)

accept+able=acceptable

(desire+able=desirable)

Words ending in -able or -ible (part 2)

In general, if the root word is not a complete word, then add -ible.

aud+ible=audible

There are many exceptions, these are just a few:

digestible, flexible, responsible, irritable, accessible, enevitable, collectible/collectable, discernible/discernable

Words ending in -ance, -ancy, -ant, or -ence, -ency, -ent

In general, if a suffix is preceded by a hard c or g sound, then the suffix is -ance, -ancy, or -ant.

elegance, ellegant, significant, vacancy

Words ending in -ance, -ancy, -ant, or -ence, -ency, -ent (part 2)

In general, if the suffix is preceded by a soft c or g sound, then the suffix is -ence, -ency, or -ent.

absence, emergency, negligent

Words ending in -tion, -sion, or -cian

In general, if the root word ends in -t, then the suffix      -tion can be added. If the root word ends in -s, the suffix -sion can be added. 

abduction, precession

Words ending in -tion, -sion, or -cian (part 2)

In general, if a word names a person, then it should end in -cian.

musician, physician