SN4 ""

No	Pattern	Freq
1	[pron] is [adv] [conj]	1467
2	[noun] is [adv] [conj]	1454
3	[noun sg] is [adv] [conj]	1214
4	[pers pn] is [adv] [conj]	1170
5	it is [adv] [conj]	1088
6	it is [adv] [conj]	1085
7	[adj] is [adv] [conj]	481
8	[det] is [adv] [conj]	441
9	this is [adv] [conj]	353
10	this is [adv] [conj]	353
11	[Wh det] is [adv] [conj]	129
12	[ex0] is [adv] [conj]	128
13	there is [adv] [conj]	128
14	there is [adv] [conj]	128
15	[noun prp] is [adv] [conj]	114
16	which is [adv] [conj]	101
17	which is [adv] [conj]	101
18	[noun pl] is [adv] [conj]	99
19	[adv] is [adv] [conj]	78
20	[adv] is [adv] [conj]	74
21	that is [adv] [conj]	67
22	that is [adv] [conj]	67
23	[verb] is [adv] [conj]	66
24	[conj] is [adv] [conj]	66
25	he is [adv] [conj]	46
26	he is [adv] [conj]	45
27	point is [adv] [conj]	42
28	point is [adv] [conj]	41
29	[coord] is [adv] [conj]	37
30	what is [adv] [conj]	28