SN4 ""

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