§74. Summary of i-Stems

I-stems show the i of the stem in the following forms:—

a. They have the genitive plural in -ium (but some monosyllables lack it entirely). For a few exceptions, see § 78.

b. All neuters have the nominative and accusative plural in -ia.

c. The accusative plural (M. or F.) is regularly -īs.

d. The accusative singular (M. or F.) of a few ends in -im (§ 75).

e. The ablative singular of all neuters, and of many masculines and feminines, ends in -ī (see § 76).