SN4 ""

No	Pattern	Freq
1	[pron] [verb] four years	43
2	[pers pn] [verb] four years	38
3	[noun] [verb] four years	38
4	be [verb] four years	34
5	[be] [verb] four years	34
6	[verb] [verb] four years	28
7	[was/were] [verb] four years	25
8	was [verb] four years	23
9	have [verb] four years	22
10	[noun sg] [verb] four years	20
11	[vb past] [verb] four years	15
12	[noun prp] [verb] four years	13
13	he [verb] four years	12
14	[adv] [verb] four years	12
15	he [verb] four years	12
16	had [verb] four years	11
17	it [verb] four years	11
18	it [verb] four years	11
19	[vb mod] [verb] four years	9
20	[adv] [verb] four years	9
21	[modal v] [verb] four years	9
22	[adj] [verb] four years	7
23	[been] [verb] four years	6
24	been [verb] four years	6
25	has [verb] four years	5
26	she [verb] four years	5
27	i [verb] four years	5
28	i [verb] four years	5
29	[vb -s] [verb] four years	5
30	she [verb] four years	5