SN4 ""

No	Pattern	Freq
1	be [vb pp] [to-vb] at	537
2	[was/were] [vb pp] [to-vb] at	178
3	was [vb pp] [to-vb] at	111
4	be [vb pp] [to-vb] at	101
5	[be] [vb pp] [to-vb] at	101
6	[is] [vb pp] [to-vb] at	98
7	is [vb pp] [to-vb] at	97
8	[am/are] [vb pp] [to-vb] at	80
9	are [vb pp] [to-vb] at	73
10	[be] expected [to-vb] at	70
11	[be] [vb pp] to look at	69
12	were [vb pp] [to-vb] at	67
13	been [vb pp] [to-vb] at	64
14	[been] [vb pp] [to-vb] at	64
15	[be] allowed [to-vb] at	38
16	[be] asked [to-vb] at	37
17	[be] invited [to-vb] at	35
18	[be] forced [to-vb] at	35
19	[be] required [to-vb] at	22
20	[be] [vb pp] to stay at	22
21	[be] [vb pp] to work at	19
22	[be] [vb pp] to speak at	19
23	[be] [vb pp] to appear at	17
24	[be] [vb pp] to arrive at	17
25	[being] [vb pp] [to-vb] at	16
26	being [vb pp] [to-vb] at	16
27	[be] told [to-vb] at	15
28	[be] designed [to-vb] at	15
29	[be] made [to-vb] at	15
30	[be] [vb pp] to start at	14