Group l. If the root is a full word, the ending is usually -able.
Group II. When the root is a full word except for a final e, the forms usually are spelled with -able.
Group III. The suffix -able always follows i.
Group IV. When the root has other forms built on the letter a, the able form is used
Group V. When the root ends in hard corg, -able is used.
Group VI. When the root is not a full word, -ible is used.
Group VII. When the word has an immediate -tion form, -ible is used.
Group VIII. When the root ends in ns, miss, or soft cor g, -ible is used.
Which suffix, -able or -ible, should this word have? Also list the mnemonic group rule number that applies.
envi
Group: