SN4 ""

No	Pattern	Freq
1	[noun] is often [verb]	947
2	[noun sg] is often [verb]	814
3	[pron] is often [verb]	557
4	[pers pn] is often [verb]	394
5	it is often [verb]	364
6	it is often [verb]	364
7	[conj] is often [verb]	147
8	[Wh det] is often [verb]	143
9	[adj] is often [verb]	98
10	which is often [verb]	95
11	which is often [verb]	95
12	[det] is often [verb]	74
13	[noun pl] is often [verb]	71
14	this is often [verb]	68
15	this is often [verb]	68
16	[coord] is often [verb]	55
17	[subord] is often [verb]	50
18	what is often [verb]	48
19	what is often [verb]	48
20	and is often [verb]	46
21	and is often [verb]	46
22	[noun prp] is often [verb]	43
23	that is often [verb]	42
24	[that] is often [verb]	42
25	that is often [verb]	42
26	as is often [verb]	28
27	as is often [verb]	28
28	[verb] is often [verb]	27
29	than is often [verb]	21
30	than is often [verb]	21