The gravy
guns’ positions
are changed. (OK)
The gravy
gun’s positions
are changed. (Not OK)
==>gun's position (one gun, one position, is)
The gravy
gun’s position
is changed. (has been changed)
The gravy
guns’ position
is changed. (have been changed)
This is a Windows XP's service pack. (Not OK)
==> This is Windows XP's service pack.
==> This service pack belongs to Windows XP.
This is a Windows XP service pack. (OK)
These are
Jack’s assets. (Jack owns them; they are his)
These are
Jacks’ assets. (More than one Jack; sounds Odd, though)
Jacks, pronunication: [jaeks], means, "Jack's".
These are
science books. (OK; adjective)
These are
science’s books. (Not OK; 'science' is inanimate; animate noun take apostrophe -'s; inanimate nouns usually take the 'of' phrase:
1a. John's book
(
John is animate; he can own/possess things)
1b. book of John's (Not OK)
2a. leg of the table (
table is inanimate; the leg is a part of the table; the table doesn't own/possess the leg). :wink:
2b. table's leg (OK, but means the table owns/possesses the leg)
All the best,
