SN4 ""

No	Pattern	Freq
1	difficult for them [to-vb]	75
2	possible for them [to-vb]	39
3	impossible for them [to-vb]	37
4	easy for them [to-vb]	34
5	[adj] for them to do	22
6	necessary for them [to-vb]	18
7	[adj] for them to have	18
8	hard for them [to-vb]	17
9	[adj] for them to get	15
10	[adj] for them to take	14
11	[adj] for them to go	13
12	important for them [to-vb]	11
13	[adj] for them to come	9
14	ready for them [to-vb]	9
15	safe for them [to-vb]	8
16	[adj] for them to understand	8
17	[adj] for them to make	8
18	[adj] for them to see	7
19	[adj] for them to find	7
20	[adj] for them to say	7
21	[adj] for them to use	6
22	[adj] for them to know	6
23	[adj] for them to give	6
24	appropriate for them [to-vb]	5
25	[adj] for them to obtain	5
26	natural for them [to-vb]	5
27	usual for them [to-vb]	5
28	late for them [to-vb]	5
29	useful for them [to-vb]	5
30	[adj] for them to remain	5