SN4 ""

No	Pattern	Freq
1	[noun prp] have been [v-ing] [det]	63
2	[noun] had been [v-ing] [det]	56
3	[noun sg] have been [v-ing] [det]	47
4	[noun] have been [v-ing] [det]	47
5	[noun] has been [v-ing] [det]	45
6	[noun pl] have been [v-ing] [det]	43
7	[noun] have been [v-ing] this	33
8	[noun] have been [v-ing] all	27
9	[noun] have been [v-ing] some	25
10	[noun] have been [v-ing] more	17
11	[noun] have been [v-ing] that	14
12	[noun] have been doing [det]	13
13	[noun] 's been [v-ing] [det]	10
14	[noun] have been [v-ing] such	9
15	[n mass] have been [v-ing] [det]	7
16	[noun] have been [v-ing] enough	6
17	[noun] have been [v-ing] these	6
18	[noun] have been using [det]	6
19	[noun] have been [v-ing] each	5
20	[noun] have been having [det]	5