SN4 ""

No	Pattern	Freq
1	had [prep] years [verb]	5
2	had [prep] years [vb past]	5
3	[noun] had [prep] years	8
4	[pers pn] had [prep] years	5
5	[pron] had [prep] years	5
6	had [verb] [prep] years	33
7	had [vb pp] [prep] years	33
8	had know [prep] years	6
9	had known [prep] years	6
10	had [be] [prep] years	6
11	had been [prep] years	6
12	had [been] [prep] years	6
13	had be [prep] years	6
14	had [prep] [adj] years	46
15	had [prep] [det] years	28
16	had [prep] many years	18
17	had [prep] many years	18
18	had [prep] [adj] years	10
19	had [prep] [num] years	8
20	had [prep] recent years	8
21	had [prep] recent years	8
22	had [prep] several years	6
23	had [prep] several years	6