SN4 ""

No	Pattern	Freq
1	[noun] is that [pers pn] [verb]	1871
2	[noun sg] is that [pers pn] [verb]	1498
3	[noun pl] is that [pers pn] [verb]	290
4	[verb] is that [pers pn] [verb]	271
5	[adj] is that [pers pn] [verb]	223
6	[pron] is that [pers pn] [verb]	191
7	[pers pn] is that [pers pn] [verb]	154
8	it is that [pers pn] [verb]	105
9	it is that [pers pn] [verb]	105
10	[det] is that [pers pn] [verb]	93
11	[adj] is that [pers pn] [verb]	87
12	[adv] is that [pers pn] [verb]	77
13	thing is that [pers pn] [verb]	75
14	thing is that [pers pn] [verb]	73
15	[noun prp] is that [pers pn] [verb]	69
16	[adv] is that [pers pn] [verb]	60
17	[vb infin] is that [pers pn] [verb]	59
18	problem is that [pers pn] [verb]	56
19	say is that [pers pn] [verb]	55
20	[vb base] is that [pers pn] [verb]	53
21	problem is that [pers pn] [verb]	50
22	[v-ing] is that [pers pn] [verb]	44
23	[to-vb] is that [pers pn] [verb]	42
24	that is that [pers pn] [verb]	37
25	that is that [pers pn] [verb]	37
26	this is that [pers pn] [verb]	37
27	this is that [pers pn] [verb]	37
28	[vb -s] is that [pers pn] [verb]	35
29	point is that [pers pn] [verb]	34
30	[vb pp] is that [pers pn] [verb]	34