The plural of family is

The correct plural of family is families. When a noun ends in y preceded by a consonant the y is changed to ies to form the plural. For example baby becomes babies and city becomes cities. Family follows the same pattern and changes to families in the plural form. This rule helps learners understand standard English spelling practices. Incorrect forms like familys or famlies do not follow this rule and are grammatically wrong. Using correct plural forms is essential for proper writing and speaking. Therefore families is the right answer to this question about English grammar.