SN4 ""

No	Pattern	Freq
1	[adj] [to-vb] but	254
2	difficult [to-vb] but	51
3	easy [to-vb] but	32
4	hard [to-vb] but	31
5	able [to-vb] but	12
6	[adj] to say but	12
7	[adj] to do but	12
8	[adj] to believe but	9
9	likely [to-vb] but	8
10	ready [to-vb] but	7
11	[adj] to go but	6
12	[adj] to find but	6
13	impossible [to-vb] but	6
14	expensive [to-vb] but	6
15	[adj] to use but	6
16	[adj] to define but	6
17	simple [to-vb] but	5