SN4 ""

No	Pattern	Freq
1	be [vb pp] at a [noun]	831
2	[be] [vb pp] at a [noun]	831
3	[was/were] [vb pp] at a [noun]	340
4	[be] [vb pp] at a [noun]	234
5	be [vb pp] at a [noun]	234
6	was [vb pp] at a [noun]	231
7	[noun] [vb pp] at a [noun]	189
8	[adv] [vb pp] at a [noun]	121
9	[verb] [vb pp] at a [noun]	120
10	[adv] [vb pp] at a [noun]	115
11	[noun sg] [vb pp] at a [noun]	115
12	were [vb pp] at a [noun]	109
13	have [vb pp] at a [noun]	108
14	[is] [vb pp] at a [noun]	90
15	is [vb pp] at a [noun]	88
16	[noun pl] [vb pp] at a [noun]	71
17	[been] [vb pp] at a [noun]	66
18	been [vb pp] at a [noun]	66
19	[conj] [vb pp] at a [noun]	58
20	[vb past] [vb pp] at a [noun]	52
21	[being] [vb pp] at a [noun]	51
22	being [vb pp] at a [noun]	51
23	[am/are] [vb pp] at a [noun]	50
24	are [vb pp] at a [noun]	49
25	had [vb pp] at a [noun]	46
26	[coord] [vb pp] at a [noun]	44
27	and [vb pp] at a [noun]	38
28	and [vb pp] at a [noun]	38
29	[vb base] [vb pp] at a [noun]	29
30	have [vb pp] at a [noun]	23