The possessive form for the noun sea is sea's.
Example: The sea's power should never be underestimated.
The plural is oceans and the plural possessive is oceans' (referring to more than one ocean).
The singular possessive form is heart's; the plural possessive form is hearts'.
The plural form is valleys. The plural possessive is valleys'.
The plural form is replies. The plural possessive is replies'.
The plural form is founders. The plural possessive is founders'.
No, it is singular, the possessive form of it is its. The plural form of it is they or them, and the possessive form is their.To answer the question directly: there is no such word as ITS'.
The plural form is branches. The plural possessive is branches'.
The plural possessive form of "mass" is "masses'".
The plural possessive is experiments'.
The plural form is ravines. The plural possessive is ravines'.
The singular form of the plural noun oceans is ocean.The singular possessive form is ocean's.Example: You can check the chart to find the ocean's depth here.
The plural form of the noun mouthful is mouthfuls.The plural possessive form is mouthfuls'.