SN4 ""

No	Pattern	Freq
1	[prep] [pron] [pers pn] have been [v-ing]	190
2	[prep] [Wh det] [pron] have been [v-ing]	156
3	[prep] [pron] [pron] had been [v-ing]	86
4	[prep] what [pron] have been [v-ing]	82
5	[prep] what [pron] have been [v-ing]	82
6	[prep] which [pron] have been [v-ing]	69
7	[prep] which [pron] have been [v-ing]	69
8	[prep] [pron] he have been [v-ing]	56
9	[prep] [pron] he have been [v-ing]	56
10	[prep] [pron] [pron] have been [v-ing]	40
11	[prep] [pron] [pron] 've been [v-ing]	37
12	of [pron] [pron] have been [v-ing]	37
13	to [pron] [pron] have been [v-ing]	36
14	[prep] [pron] we have been [v-ing]	33
15	[prep] [pron] we have been [v-ing]	33
16	with [pron] [pron] have been [v-ing]	33
17	[prep] [pron] [pron] have been doing	31
18	[prep] [pron] i have been [v-ing]	30
19	[prep] [pron] i have been [v-ing]	30
20	[prep] whom [pron] have been [v-ing]	28
21	[prep] whom [pron] have been [v-ing]	28
22	[prep] [Wh pn] [pron] have been [v-ing]	28
23	[prep] [pron] [pron] has been [v-ing]	26
24	[prep] [pron] they have been [v-ing]	26
25	[prep] [pron] they have been [v-ing]	26
26	for [pron] [pron] have been [v-ing]	20
27	[prep] [pron] you have been [v-ing]	19
28	[prep] [pron] you have been [v-ing]	19
29	[prep] [pron] she have been [v-ing]	19
30	[prep] [pron] she have been [v-ing]	19