SN4 ""

No	Pattern	Freq
1	[adv] [verb] [is] that	266
2	[adv] [adj] [is] that	239
3	[adv] [adj] [is] that	229
4	[adv] [pron] [is] that	128
5	[adv] [pers pn] [is] that	123
6	[adv] it [is] that	122
7	[adv] it [is] that	122
8	[adv] [vb pp] [is] that	81
9	[adv] [vb infin] [is] that	70
10	[adv] [adv] [is] that	65
11	[adv] [adv] [is] that	59
12	[adv] say [is] that	43
13	[adv] [vb -s] [is] that	40
14	[adv] [v-ing] [is] that	38
15	[adv] [vb base] [is] that	29
16	[adv] happen [is] that	25
17	[adv] important [is] that	24
18	[adv] important [is] that	24
19	[adv] saying [is] that	24
20	[adv] clear [is] that	22
21	[adv] clear [is] that	22
22	[adv] mean [is] that	21
23	[adv] far [is] that	18
24	[adv] far [is] that	18
25	[adv] know [is] that	14
26	[adv] happens [is] that	14
27	[adv] [noun] [is] that	13
28	[adv] obvious [is] that	12
29	[adv] obvious [is] that	12
30	[adv] means [is] that	12