SN4 ""

No	Pattern	Freq
1	[be] [vb pp] [to-vb] at the [noun]	108
2	be [vb pp] [to-vb] at the [noun]	108
3	[verb] [vb pp] [to-vb] at the [noun]	65
4	have [vb pp] [to-vb] at the [noun]	65
5	[was/were] [vb pp] [to-vb] at the [noun]	35
6	[vb past] [vb pp] [to-vb] at the [noun]	29
7	had [vb pp] [to-vb] at the [noun]	28
8	be [vb pp] [to-vb] at the [noun]	27
9	[adv] [vb pp] [to-vb] at the [noun]	27
10	[be] [vb pp] [to-vb] at the [noun]	27
11	[vb base] [vb pp] [to-vb] at the [noun]	24
12	[adv] [vb pp] [to-vb] at the [noun]	21
13	was [vb pp] [to-vb] at the [noun]	20
14	[am/are] [vb pp] [to-vb] at the [noun]	17
15	is [vb pp] [to-vb] at the [noun]	16
16	[is] [vb pp] [to-vb] at the [noun]	16
17	were [vb pp] [to-vb] at the [noun]	15
18	are [vb pp] [to-vb] at the [noun]	14
19	've [vb pp] [to-vb] at the [noun]	13
20	have [vb pp] [to-vb] at the [noun]	11
21	[been] [vb pp] [to-vb] at the [noun]	10
22	been [vb pp] [to-vb] at the [noun]	10
23	[vb infin] [vb pp] [to-vb] at the [noun]	7
24	[noun] [vb pp] [to-vb] at the [noun]	6
25	[not/n't] [vb pp] [to-vb] at the [noun]	6
26	have [vb pp] [to-vb] at the [noun]	6
27	not [vb pp] [to-vb] at the [noun]	6
28	[vb -s] [vb pp] [to-vb] at the [noun]	5
29	not [vb pp] [to-vb] at the [noun]	5
30	[vb pp] [adv] [to-vb] at the [noun]	10