SN4 ""

No	Pattern	Freq
1	['s] [noun] is that [pers pn] [verb]	60
2	's [noun] is that [pers pn] [verb]	57
3	['s] [noun sg] is that [pers pn] [verb]	52
4	['s] [noun] is that [pers pn] [vb -s]	40
5	['s] [noun] is that it [verb]	31
6	['s] [noun] is that [pers pn] [vb base]	14
7	['s] [noun] is that they [verb]	10
8	['s] [noun] is that he [verb]	10
9	['s] [noun pl] is that [pers pn] [verb]	8
10	['s] [noun] is that [pers pn] have	8
11	['s] [noun] is that [pers pn] do	6
12	['s] [noun] is that [pers pn] [vb past]	6
13	['s] [noun] is that [pers pn] does	6
14	['s] position is that [pers pn] [verb]	6
15	['s] [noun] is that [pers pn] has	6
16	['s] position is that [pers pn] [verb]	6
17	['s] [noun] is that we [verb]	5
18	['s] work is that [pers pn] [verb]	5
19	['s] work is that [pers pn] [verb]	5