The plural for thirteen is thirteens (13s).
As in "they are in their thirteens".
(+)13 does NOT equal (-13). However, their modulii (plural of modulus) are equal at '13' . It is written as as a value -13 < +13 However the modulii is written as |-13| = |+13| note the use of vertical lines, because the numerical value is the same.
The plural of abundance is abundances. It is a regular plural.
The word "police" is plural and it takes a plural verb.
The plural is billions.
The plural is amounts.
That is the correct spelling of the plural noun "teens" (teenagers, or numbers from 13 to 19).
(+)13 does NOT equal (-13). However, their modulii (plural of modulus) are equal at '13' . It is written as as a value -13 < +13 However the modulii is written as |-13| = |+13| note the use of vertical lines, because the numerical value is the same.
The plural of "she" is "they", so the plural of "she had" is "they had".
The plural of 'this' is 'these' and the plural of 'that' is 'those'.
Isthmi is plural. There are actually two plural forms. I will list them from singular to plural. Isthmus - Singular Isthmi - Plural Isthmuses - Plural
The Church of Christ Matthew 16:13-19 Romans 16:16 the church of christ greet you plural
The singular possessive for reindeer is reindeer's.
The plural of rose is roses. The plural possessive is roses'.
The plural form of can is cans.
Knights is a plural. It is the plural for knight.
applied is does not have a plural but is apply it does have a plural.
The plural is a regular plural, attics.