SN4 ""

No	Pattern	Freq
1	[conj] it is the [adj]	544
2	[conj] it is the [adj]	357
3	[subord] it is the [adj]	212
4	[that] it is the [adj]	174
5	that it is the [adj]	174
6	that it is the [adj]	174
7	[coord] it is the [adj]	158
8	and it is the [adj]	88
9	and it is the [adj]	88
10	because it is the [adj]	70
11	[conj] it is the only	70
12	[conj] it is the only	70
13	because it is the [adj]	70
14	but it is the [adj]	69
15	but it is the [adj]	69
16	[conj] it is the [adj -est]	67
17	[conj] it is the [num ord]	61
18	if it is the [adj]	41
19	if it is the [adj]	41
20	[conj] it is the first	41
21	[conj] it is the first	41
22	[conj] it is the [det]	37
23	[conj] it is the good	34
24	[conj] it is the best	31
25	[conj] it is the same	25
26	as it is the [adj]	25
27	[conj] it is the same	25
28	as it is the [adj]	25
29	whether it is the [adj]	18
30	whether it is the [adj]	18