SN4 ""

No	Pattern	Freq
1	[verb] be [prep] [det] years	36
2	have be [prep] [det] years	36
3	[pron] be [prep] [det] years	22
4	[noun] be [prep] [det] years	20
5	[pers pn] be [prep] [det] years	19
6	[vb -s] be [prep] [det] years	18
7	has be [prep] [det] years	17
8	it be [prep] [det] years	11
9	it be [prep] [det] years	11
10	[vb past] be [prep] [det] years	10
11	had be [prep] [det] years	10
12	[noun prp] be [prep] [det] years	8
13	he be [prep] [det] years	7
14	he be [prep] [det] years	7
15	have be [prep] [det] years	6
16	[vb base] be [prep] [det] years	6
17	[noun pl] be [prep] [det] years	6
18	[noun sg] be [prep] [det] years	5
19	be [verb] [prep] [det] years	191
20	be [vb pp] [prep] [det] years	149
21	be [adj] [prep] [det] years	70
22	be [adj] [prep] [det] years	67
23	be [v-ing] [prep] [det] years	38
24	be [adv] [prep] [det] years	31
25	be known [prep] [det] years	16
26	be know [prep] [det] years	16
27	be use [prep] [det] years	15
28	be used [prep] [det] years	15
29	be not [prep] [det] years	11
30	be [not/n't] [prep] [det] years	11