Bankers is the plural form. The plural possessive form is bankers'.
The noun 'sister' is not plural and is not possessive.The plural form is sisters.The possessive form is sister's.The plural possessive form is sisters'.
The plural form is cockroaches; the plural possessive form is cockroaches'.
The plural form is squirrels. The plural possessive is squirrels'.
The plural form is scientists. The plural possessive is scientists'.
The plural possessive form is Luis's.
The singular possessive form is heart's; the plural possessive form is hearts'.
The plural form for the noun sergeant is sergeants; the plural possessive form is sergeants'.
The noun 'sister' is not plural and is not possessive.The plural form is sisters.The possessive form is sister's.The plural possessive form is sisters'.
The singular possessive form for the noun knife is knife's.The plural form is knives; the plural possessive form is knives'.
The plural form is cockroaches; the plural possessive form is cockroaches'.
The plural form is squirrels. The plural possessive is squirrels'.
The plural form is scientists. The plural possessive is scientists'.
The plural form is valleys. The plural possessive is valleys'.
The plural form is founders. The plural possessive is founders'.
The plural form is replies. The plural possessive is replies'.
The plural form is valleys. The plural possessive is valleys'.
The plural form is treasurers. The plural possessive is treasurers'.