SN4 ""

No	Pattern	Freq
1	[pron] [be] perhaps a	103
2	[pers pn] [be] perhaps a	69
3	it [be] perhaps a	56
4	it [be] perhaps a	56
5	[noun] [be] perhaps a	49
6	[noun sg] [be] perhaps a	35
7	[adj] [be] perhaps a	27
8	[det] [be] perhaps a	25
9	[ex0] [be] perhaps a	20
10	there [be] perhaps a	20
11	there [be] perhaps a	20
12	this [be] perhaps a	19
13	this [be] perhaps a	19
14	[conj] [be] perhaps a	12
15	[Wh det] [be] perhaps a	11
16	[noun pl] [be] perhaps a	10
17	[coord] [be] perhaps a	9
18	which [be] perhaps a	9
19	which [be] perhaps a	9
20	[adv] [be] perhaps a	6
21	that [be] perhaps a	6
22	[verb] [be] perhaps a	6
23	that [be] perhaps a	6
24	and [be] perhaps a	5
25	and [be] perhaps a	5
26	[adv] [be] perhaps a	5
27	[be] [pron] perhaps a	10
28	[be] [adv] perhaps a	8
29	[be] [pers pn] perhaps a	7
30	[be] perhaps [adv] a	26