SN4 ""

No	Pattern	Freq
1	[noun] that have been [v-ing]	259
2	[noun sg] that have [been] [v-ing]	177
3	[noun] that had [been] [v-ing]	111
4	[noun pl] that have [been] [v-ing]	70
5	[noun] that has [been] [v-ing]	67
6	[noun] that have [been] [v-ing]	47
7	[noun] that 's [been] [v-ing]	34
8	[noun] that have [been] going	30
9	[noun] that have [been] growing	9
10	[noun] that have [been] taking	9
11	thing that have [been] [v-ing]	9
12	question that have [been] [v-ing]	9
13	[n mass] that have [been] [v-ing]	8
14	question that have [been] [v-ing]	7
15	company that have [been] [v-ing]	7
16	people that have [been] [v-ing]	6
17	[noun] that have [been] missing	6
18	things that have [been] [v-ing]	6
19	people that have [been] [v-ing]	6
20	[noun] that have [been] running	6
21	[noun] that have [been] standing	6
22	[noun] that have [been] holding	6
23	change that have [been] [v-ing]	5
24	company that have [been] [v-ing]	5
25	[noun] that have [been] coming	5
26	[noun] that have [been] waiting	5
27	changes that have [been] [v-ing]	5
28	[noun] that have [been] building	5
29	[noun] that have [been] brewing	5