SN4 ""

No	Pattern	Freq
1	it is the [adj]	2186
2	it is the [adj]	1339
3	it is the [num ord]	364
4	it is the [adj -est]	246
5	it is the first	225
6	it is the first	225
7	it is the only	208
8	it is the only	208
9	it is the [det]	171
10	it is the same	124
11	it is the same	124
12	it is the good	71
13	it is the best	66
14	it is the second	56
15	it is the second	56
16	it is the last	38
17	it is the last	38
18	it is the latter	35
19	it is the [adj -er]	35
20	it is the latter	35
21	it is the [num]	31
22	it is the main	29
23	it is the main	29
24	it is the right	27
25	it is the right	27
26	it is the big	26
27	it is the old	25
28	it is the large	24
29	it is the biggest	23
30	it is the very	19