SN4 ""

No	Pattern	Freq
1	be [vb pp] at a [noun]	920
2	[be] [vb pp] at a [noun]	920
3	[was/were] [vb pp] at a [noun]	379
4	was [vb pp] at a [noun]	257
5	[be] [vb pp] at a [noun]	249
6	be [vb pp] at a [noun]	249
7	[noun] [vb pp] at a [noun]	225
8	[noun sg] [vb pp] at a [noun]	139
9	[adv] [vb pp] at a [noun]	134
10	[verb] [vb pp] at a [noun]	130
11	[adv] [vb pp] at a [noun]	127
12	were [vb pp] at a [noun]	122
13	have [vb pp] at a [noun]	117
14	[is] [vb pp] at a [noun]	106
15	is [vb pp] at a [noun]	104
16	[noun pl] [vb pp] at a [noun]	82
17	[been] [vb pp] at a [noun]	74
18	been [vb pp] at a [noun]	74
19	[conj] [vb pp] at a [noun]	63
20	[vb past] [vb pp] at a [noun]	57
21	[am/are] [vb pp] at a [noun]	57
22	are [vb pp] at a [noun]	56
23	[being] [vb pp] at a [noun]	55
24	being [vb pp] at a [noun]	55
25	had [vb pp] at a [noun]	50
26	[coord] [vb pp] at a [noun]	48
27	and [vb pp] at a [noun]	42
28	and [vb pp] at a [noun]	42
29	[vb base] [vb pp] at a [noun]	32
30	have [vb pp] at a [noun]	26