The volcanos' rocks
The plural form of the noun volcano is volcanoes.The plural possessive form is volcanoes'.Example: The government monitors many volcanoes' activitywith a network of instruments.
The plural form of the noun volcano is volcanoes.The plural possessive noun is volcanoes'.Example: Hawaii has two active volcanoes, Kilauea and Mauna Loa. The volcanoes' activity is monitored by the US Geological Survey.
volcanos.
Volcanos
The volcanos' rocks
The plural form of volcano may be spelled, volcanos or volcanoes.The -es version, as with the plural, tornadoes, is more widely used.
Coaster's is singular possessive. The plural is coasters, the plural possessive is coasters'.
The correct form is "its" for the possessive form in the plural. "Its" is used for both the singular and plural possessive forms, without an apostrophe.
The plural is briefs. The plural possessive is briefs'.
The plural is lads. The plural possessive is lads'.
The plural is trollies. The plural possessive is trollies'.
The plural is relatives. The plural possessive is relatives'.
The plural is stations. The plural possessive is stations'.
Museum is singular. Museum's is singular possessive. Museums is plural. Museums' is plural possessive.
The singular possessive form is heart's; the plural possessive form is hearts'.
The plural of rose is roses. The plural possessive is roses'.