SN4 ""

No	Pattern	Freq
1	[be] [vb pp] for [det] years	108
2	be [vb pp] for [det] years	108
3	[verb] [vb pp] for [det] years	94
4	have [vb pp] for [det] years	92
5	[been] [vb pp] for [det] years	77
6	been [vb pp] for [det] years	77
7	[vb past] [vb pp] for [det] years	37
8	had [vb pp] for [det] years	35
9	[adv] [vb pp] for [det] years	31
10	[vb base] [vb pp] for [det] years	26
11	have [vb pp] for [det] years	24
12	[vb -s] [vb pp] for [det] years	20
13	[adv] [vb pp] for [det] years	19
14	has [vb pp] for [det] years	19
15	[noun] [vb pp] for [det] years	17
16	[be] [vb pp] for [det] years	16
17	be [vb pp] for [det] years	16
18	[was/were] [vb pp] for [det] years	13
19	was [vb pp] for [det] years	12
20	not [vb pp] for [det] years	12
21	not [vb pp] for [det] years	12
22	[not/n't] [vb pp] for [det] years	12
23	[noun pl] [vb pp] for [det] years	11
24	[conj] [vb pp] for [det] years	7
25	[coord] [vb pp] for [det] years	7
26	and [vb pp] for [det] years	6
27	[v-ing] [vb pp] for [det] years	6
28	and [vb pp] for [det] years	6
29	[noun sg] [vb pp] for [det] years	6
30	having [vb pp] for [det] years	5