SN4 ""

No	Pattern	Freq
1	[noun] is that [pron] do [adv]	131
2	[noun sg] is that [pron] do [adv]	98
3	[verb] is that [pron] do [adv]	28
4	[noun pl] is that [pron] do [adv]	26
5	[adj] is that [pron] do [adv]	21
6	[pron] is that [pron] do [adv]	15
7	[pers pn] is that [pron] do [adv]	14
8	problem is that [pron] do [adv]	14
9	[det] is that [pron] do [adv]	13
10	problem is that [pron] do [adv]	12
11	say is that [pron] do [adv]	9
12	[v-ing] is that [pron] do [adv]	9
13	it is that [pron] do [adv]	8
14	it is that [pron] do [adv]	8
15	trouble is that [pron] do [adv]	7
16	[to-vb] is that [pron] do [adv]	7
17	this is that [pron] do [adv]	7
18	trouble is that [pron] do [adv]	7
19	this is that [pron] do [adv]	7
20	thing is that [pron] do [adv]	6
21	thing is that [pron] do [adv]	6
22	saying is that [pron] do [adv]	6
23	[adj] is that [pron] do [adv]	5
24	[noun prp] is that [pron] do [adv]	5
25	is [adj] that [pron] do [adv]	34
26	is [adj] that [pron] do [adv]	29
27	is [adv] that [pron] do [adv]	14
28	is important that [pron] do [adv]	10
29	is important that [pron] do [adv]	10
30	is [pron] that [pron] do [adv]	10