SN4 ""

No	Pattern	Freq
1	have been [v-ing] for some	81
2	[verb] been [v-ing] for some	81
3	[vb past] been [v-ing] for some	42
4	had been [v-ing] for some	40
5	[vb -s] been [v-ing] for some	19
6	[vb base] been [v-ing] for some	17
7	has been [v-ing] for some	16
8	have been [v-ing] for some	14
9	[adv] been [v-ing] for some	5
10	been [v-ing] [adv] for some	31
11	been [v-ing] [adv prt] for some	21
12	been [v-ing] [pron] for some	20
13	been [v-ing] [pers pn] for some	19
14	been [v-ing] on for some	18
15	been [v-ing] on for some	18
16	been [v-ing] [adv] for some	10
17	been [v-ing] it for some	8
18	been [v-ing] it for some	8
19	been [v-ing] [noun] for some	7
20	been [v-ing] [adj] for some	6
21	been [v-ing] me for some	5
22	been [v-ing] i for some	5
23	been [v-ing] [noun pl] for some	5
24	been [v-ing] for some [noun]	80
25	been [v-ing] for some [noun sg]	64
26	been [v-ing] for some time	59
27	been [v-ing] for some time	59
28	been [v-ing] for some [noun pl]	16
29	been [v-ing] for some year	9
30	been [v-ing] for some years	9