SN4 ""

No	Pattern	Freq
1	[noun] could be [vb pp] for	324
2	[noun sg] could be [vb pp] for	185
3	[pron] could be [vb pp] for	164
4	[noun pl] could be [vb pp] for	113
5	[pers pn] could be [vb pp] for	100
6	[conj] could be [vb pp] for	61
7	[adj] could be [vb pp] for	54
8	[Wh det] could be [vb pp] for	47
9	[det] could be [vb pp] for	46
10	which could be [vb pp] for	43
11	which could be [vb pp] for	43
12	you could be [vb pp] for	37
13	you could be [vb pp] for	37
14	that could be [vb pp] for	33
15	that could be [vb pp] for	33
16	[that] could be [vb pp] for	33
17	it could be [vb pp] for	23
18	it could be [vb pp] for	23
19	[noun prp] could be [vb pp] for	19
20	they could be [vb pp] for	18
21	they could be [vb pp] for	18
22	[coord] could be [vb pp] for	17
23	[indef pn] could be [vb pp] for	16
24	that could be [vb pp] for	14
25	and could be [vb pp] for	14
26	same could be [vb pp] for	14
27	that could be [vb pp] for	14
28	same could be [vb pp] for	14
29	and could be [vb pp] for	14
30	he could be [vb pp] for	11