SN4 ""

No	Pattern	Freq
1	[noun] is that [pers pn] [adv]	181
2	[noun sg] is that [pers pn] [adv]	133
3	[noun pl] is that [pers pn] [adv]	38
4	[verb] is that [pers pn] [adv]	29
5	[adj] is that [pers pn] [adv]	27
6	[adj] is that [pers pn] [adv]	15
7	[pron] is that [pers pn] [adv]	13
8	[pers pn] is that [pers pn] [adv]	11
9	thing is that [pers pn] [adv]	10
10	thing is that [pers pn] [adv]	10
11	problem is that [pers pn] [adv]	10
12	[det] is that [pers pn] [adv]	9
13	problem is that [pers pn] [adv]	8
14	[noun prp] is that [pers pn] [adv]	8
15	[vb pp] is that [pers pn] [adv]	7
16	truth is that [pers pn] [adv]	7
17	[adv] is that [pers pn] [adv]	7
18	[v-ing] is that [pers pn] [adv]	7
19	truth is that [pers pn] [adv]	7
20	it is that [pers pn] [adv]	6
21	it is that [pers pn] [adv]	6
22	this is that [pers pn] [adv]	5
23	this is that [pers pn] [adv]	5
24	[vb infin] is that [pers pn] [adv]	5
25	[vb -s] is that [pers pn] [adv]	5
26	is [adj] that [pers pn] [adv]	50
27	is [adj] that [pers pn] [adv]	44
28	is [verb] that [pers pn] [adv]	14
29	is [pron] that [pers pn] [adv]	11
30	is [adv] that [pers pn] [adv]	10