SN4 ""

No	Pattern	Freq
1	[noun prp] [noun prp] have been [v-ing]	550
2	[noun prp] [noun] has been [v-ing]	368
3	[noun prp] [noun] had been [v-ing]	232
4	[noun prp] [noun sg] have been [v-ing]	115
5	[noun prp] [noun] have been [v-ing]	113
6	mr [noun] have been [v-ing]	83
7	[noun prp] [noun pl] have been [v-ing]	67
8	[noun prp] [noun] have been working	34
9	[noun prp] [noun] have been trying	27
10	[noun prp] [noun] 's been [v-ing]	24
11	mrs [noun] have been [v-ing]	23
12	[noun prp] [noun] have been looking	23
13	[noun prp] [noun] have been telling	21
14	[noun prp] [noun] have been playing	15
15	[noun prp] [noun] have been using	14
16	us [noun] have been [v-ing]	13
17	[noun prp] [noun] have been talking	13
18	[noun prp] [noun] have been going	13
19	[noun prp] corp have been [v-ing]	13
20	[noun prp] [noun] have been taking	13
21	[noun prp] corp have been [v-ing]	13
22	[noun prp] [noun] have been having	12
23	[noun prp] [noun] have been running	11
24	miss [noun] have been [v-ing]	11
25	[noun prp] [noun] have been getting	9
26	[noun prp] [noun] have been reading	9
27	john [noun] have been [v-ing]	9
28	[noun prp] [noun] have been finding	9
29	paul [noun] have been [v-ing]	9
30	[noun prp] [noun] have been doing	8