SN4 ""

No	Pattern	Freq
1	be [adj] [to-vb] at the [noun]	141
2	[be] [adj] [to-vb] at the [noun sg]	118
3	[is] [adj] [to-vb] at the [noun]	47
4	[was/were] [adj] [to-vb] at the [noun]	44
5	is [adj] [to-vb] at the [noun]	41
6	[be] [adj] to look at the [noun]	38
7	was [adj] [to-vb] at the [noun]	33
8	[be] able [to-vb] at the [noun]	29
9	be [adj] [to-vb] at the [noun]	27
10	[be] [adj] [to-vb] at the [noun]	27
11	[be] [adj] [to-vb] at the [noun pl]	17
12	[be] [adj] [to-vb] at the end	17
13	[be] [adj] [to-vb] at the end	17
14	[am/are] [adj] [to-vb] at the [noun]	15
15	[be] likely [to-vb] at the [noun]	14
16	are [adj] [to-vb] at the [noun]	13
17	were [adj] [to-vb] at the [noun]	11
18	[be] important [to-vb] at the [noun]	11
19	[be] [adj] [to-vb] at the time	9
20	[be] due [to-vb] at the [noun]	9
21	[be] [adj] [to-vb] at the time	9
22	[been] [adj] [to-vb] at the [noun]	6
23	been [adj] [to-vb] at the [noun]	6
24	[be] necessary [to-vb] at the [noun]	6
25	's [adj] [to-vb] at the [noun]	6
26	[be] [adj] to get at the [noun]	5
27	[be] [adj] [to-vb] at the [noun prp]	5
28	[be] prepared [to-vb] at the [noun]	5
29	[be] [adj] [to-vb] at the outset	5
30	[be] [adj] [to-vb] at the outset	5