Point 97 in PRONOUNS is defined as:
possessive ‘THEIRS’ with singular and plural reference, in object positions, and complement positions after ‘be’ and after prepositions.
An iWeb search for
* * * * theirs . :
1 YOUR PROBLEM , NOT THEIRS . 31
2 . THE CHOICE IS THEIRS . 27
3 BE THE SAME AS THEIRS . 24
4 YOUR FAULT , NOT THEIRS . 24
5 KINGDOM OF HEAVEN IS THEIRS . 22
6 OF YOUR TIME AND THEIRS . 22
7 , AS WELL AS THEIRS . 19
8 IS MORE EXCELLENT THAN THEIRS . 19
9 YOUR LIFE , NOT THEIRS . 19
10 AS IF IT WERE THEIRS . 17
11 FOR YOUR SAFETY AND THEIRS . 16
12 HIRE YOU TO BUILD THEIRS . 16
13 MY FAULT , NOT THEIRS . 16
14 A BIG FAN OF THEIRS . 15
15 , THE CHOICE IS THEIRS . 14
16 IS THE SAME AS THEIRS . 14
17 THROUGH NO FAULT OF THEIRS . 14
18 WASTE YOUR TIME OR THEIRS . 14
19 WASTING YOUR TIME AND THEIRS . 14
20 FOR NO FAULT OF THEIRS . 13
21 DO THE SAME WITH THEIRS . 12
22 FROM YOUR HEART TO THEIRS . 12
23 INHERITED IS SUPERIOR TO THEIRS . 12
24 LAND THAT WAS NOT THEIRS . 12
25 OUR FAULT , NOT THEIRS . 12
26 TO HELP OTHERS WITH THEIRS . 12
27 ‘S YOUR WORD AGAINST THEIRS . 11
28 ALL AROUND ARE LOSING THEIRS . 11
29 BACK WHAT IS RIGHTFULLY THEIRS . 11
30 EVEN START ASKING FOR THEIRS . 11
*note the high number of reading class entries. Also, it is interesting that there is a number of level 3 class examples or B1 students using this structure which may cast some doubt on this being a B2 marker as the EGP proposes.
I believe the people [who] love children[,] probably have responsibility with theirs.
I will explain [to] you theirs.
The research shows us the fact that people tend to bond with people whose odo[u]r-type is different from theirs.
Also, Koreans have lots of cultures and long history from ancestors who used Han-gul, so new people who use other language[s] would not accept these cultures and history as theirs.
In another sense, it is represented in the arguments of the “true believers” who seek to disprove the validity of all other beliefs and ideas in order to retain confidence in theirs.
*This sentence is repeated multiple times by various students. In reading classes, the production will be less reliable.
However, nowadays I feel my situation is similar to theirs.
I used to write words on a paper one more time, and usually see theirs.