SN4 ""

No	Pattern	Freq
1	[pron] is [adv] that [art] [noun]	82
2	[pers pn] is [adv] that [art] [noun]	82
3	it is [adv] that [art] [noun]	81
4	it is [adv] that [art] [noun]	80
5	[noun] is [adv] that [art] [noun]	46
6	[noun sg] is [adv] that [art] [noun]	40
7	[adj] is [adv] that [art] [noun]	6
8	point is [adv] that [art] [noun]	6
9	point is [adv] that [art] [noun]	6
10	this is [adv] that [art] [noun]	5
11	this is [adv] that [art] [noun]	5
12	[det] is [adv] that [art] [noun]	5
13	[verb] is [adv] that [art] [noun]	5
14	is [adv] [adv] that [art] [noun]	52
15	is [adj] [adv] that [art] [noun]	46
16	is [adj] [adv] that [art] [noun]	43
17	is [verb] [adv] that [art] [noun]	36
18	is [not/n't] [adv] that [art] [noun]	35
19	is [vb pp] [adv] that [art] [noun]	35
20	is not [adv] that [art] [noun]	35
21	is not [adv] that [art] [noun]	33
22	is [adv] [adv] that [art] [noun]	17
23	is only [adv] that [art] [noun]	9
24	is only [adv] that [art] [noun]	9
25	is clear [adv] that [art] [noun]	7
26	is clear [adv] that [art] [noun]	7
27	is necessary [adv] that [art] [noun]	5
28	is necessary [adv] that [art] [noun]	5
29	is [adv] [adj] that [art] [noun]	627
30	is [adv] [adj] that [art] [noun]	615