SN4 ""

No	Pattern	Freq
1	[is] [adj] [to-vb] the [adj]	801
2	is [adj] [to-vb] the [adj]	768
3	[is] [adj] [to-vb] the [adj]	708
4	[is] possible [to-vb] the [adj]	85
5	[is] possible [to-vb] the [adj]	85
6	's [adj] [to-vb] the [adj]	80
7	[is] important [to-vb] the [adj]	77
8	[is] important [to-vb] the [adj]	77
9	[is] necessary [to-vb] the [adj]	68
10	[is] necessary [to-vb] the [adj]	68
11	[is] likely [to-vb] the [adj]	54
12	[is] likely [to-vb] the [adj]	54
13	[is] difficult [to-vb] the [adj]	52
14	[is] difficult [to-vb] the [adj]	52
15	[is] [adj] [to-vb] the [det]	44
16	[is] [adj] [to-vb] the same	41
17	[is] [adj] [to-vb] the same	41
18	[is] easy [to-vb] the [adj]	39
19	[is] [adj] to see the [adj]	35
20	[is] [adj] [to-vb] the [num ord]	32
21	[is] able [to-vb] the [adj]	30
22	[is] impossible [to-vb] the [adj]	30
23	[is] able [to-vb] the [adj]	30
24	[is] impossible [to-vb] the [adj]	30
25	[is] easy [to-vb] the [adj]	29
26	[is] hard [to-vb] the [adj]	28
27	[is] [adj] [to-vb] the [num]	27
28	[is] hard [to-vb] the [adj]	27
29	[is] interesting [to-vb] the [adj]	26
30	[is] interesting [to-vb] the [adj]	26