SN4 ""

No	Pattern	Freq
1	[noun] is that it [verb]	721
2	[noun] is that it [verb]	721
3	[noun] is [that] it [verb]	721
4	[noun] is [conj] it [vb -s]	709
5	[noun sg] is [conj] it [verb]	680
6	[noun] is [conj] it have	87
7	[noun] is [conj] it has	76
8	[noun] is [conj] it do	71
9	[noun] is [conj] it does	65
10	[noun pl] is [conj] it [verb]	45
11	[noun] is [conj] it [vb past]	45
12	[noun] is [subord] it [verb]	32
13	approach is [conj] it [verb]	28
14	approach is [conj] it [verb]	28
15	[noun] is [conj] it make	27
16	[noun] is [conj] it makes	25
17	[noun] is [conj] it allows	25
18	[noun] is [conj] it provide	25
19	[noun prp] is [conj] it [verb]	25
20	[noun] is [conj] it provides	25
21	[noun] is [conj] it allow	25
22	theory is [conj] it [verb]	21
23	theory is [conj] it [verb]	21
24	[noun] is whether it [verb]	16
25	[noun] is [conj] it seem	16
26	system is [conj] it [verb]	16
27	system is [conj] it [verb]	16
28	[noun] is [conj] it give	16
29	[noun] is whether it [verb]	16
30	[noun] is [conj] it seems	15