SN4 ""

No	Pattern	Freq
1	which [pers pn] have been [v-ing]	175
2	which [pron] had been [v-ing]	86
3	which he have been [v-ing]	50
4	which he have been [v-ing]	50
5	which [pron] have been [v-ing]	40
6	which i have been [v-ing]	33
7	which i have been [v-ing]	33
8	which we have been [v-ing]	29
9	which we have been [v-ing]	29
10	which she have been [v-ing]	22
11	which she have been [v-ing]	22
12	which [pron] has been [v-ing]	21
13	which they have been [v-ing]	20
14	which they have been [v-ing]	20
15	which [pron] 've been [v-ing]	20
16	which it have been [v-ing]	12
17	which it have been [v-ing]	12
18	which [pron] have been working	11
19	which you have been [v-ing]	9
20	which you have been [v-ing]	9
21	which [pron] have been trying	9
22	which [pron] 'd been [v-ing]	7
23	which [pron] have been using	6
24	which [pron] have been looking	5
25	which [pron] have been doing	5
26	which [pron] have been discussing	5
27	which [pron] have been talking	5
28	which [pron] have been writing	5