SN4 ""

No	Pattern	Freq
1	[noun] be [vb pp] produce	173
2	[vb mod] be [vb pp] produce	92
3	[modal v] be [vb pp] produce	92
4	[noun sg] be [vb pp] produce	91
5	[noun pl] be [vb pp] produce	63
6	[pron] be [vb pp] produce	61
7	[verb] be [vb pp] produce	59
8	have be [vb pp] produce	55
9	[pers pn] be [vb pp] produce	43
10	can be [vb pp] produce	42
11	can be [vb pp] produce	42
12	[adv] be [vb pp] produce	33
13	[adv] be [vb pp] produce	30
14	[vb -s] be [vb pp] produce	27
15	has be [vb pp] produce	27
16	it be [vb pp] produce	26
17	it be [vb pp] produce	26
18	[prep] be [vb pp] produce	16
19	[prep] be [vb pp] produce	16
20	[vb base] be [vb pp] produce	16
21	have be [vb pp] produce	15
22	[Wh det] be [vb pp] produce	14
23	to be [vb pp] produce	14
24	to be [vb pp] produce	14
25	which be [vb pp] produce	13
26	which be [vb pp] produce	13
27	[conj] be [vb pp] produce	13
28	[noun prp] be [vb pp] produce	12
29	may be [vb pp] produce	11
30	may be [vb pp] produce	11