SN4 ""

No	Pattern	Freq
1	[modal v] always refer to	9
2	[vb mod] always refer to	9
3	be always refer to	7
4	[be] always refer to	7
5	[pron] always refer to	7
6	[noun] always refer to	7
7	have always refer to	6
8	[verb] always refer to	6
9	[pers pn] always refer to	6
10	must always refer to	5
11	must always refer to	5
12	always refer to [prep]	16
13	always refer to [prep]	16
14	always refer to [pron]	12
15	always refer to as	12
16	always refer to as	12
17	always refer to [pers pn]	8
18	always refer to [art]	8
19	always refer to [art]	8
20	always refer to [adj]	5