SN4 ""

No	Pattern	Freq
61	[prep] fifteen years [pers pn]	7
62	[prep] 20 years [pers pn]	7
63	[prep] 20 years [pers pn]	7
64	to [adj] years [pers pn]	7
65	[prep] fifteen years [pers pn]	7
66	[prep] 15 years [pers pn]	7
67	to [adj] years [pers pn]	7
68	[prep] 15 years [pers pn]	7
69	[prep] twenty-five years [pers pn]	6
70	[prep] 30 years [pers pn]	6
71	[prep] 11 years [pers pn]	6
72	[prep] 11 years [pers pn]	6
73	[prep] twenty-five years [pers pn]	6
74	[prep] 30 years [pers pn]	6
75	[prep] eight years [pers pn]	6
76	[prep] eight years [pers pn]	6
77	[prep] previous years [pers pn]	5
78	[prep] twelve years [pers pn]	5
79	[prep] nine years [pers pn]	5
80	[prep] nine years [pers pn]	5
81	[prep] twelve years [pers pn]	5
82	[prep] previous years [pers pn]	5