SN4 ""

No	Pattern	Freq
1	[pron] have been happening [prep]	58
2	[Wh det] have been happening [prep]	55
3	what have been happening [prep]	55
4	what have been happening [prep]	55
5	[conj] have been happening [prep]	9
6	[noun] have been happening [prep]	9
7	[adj] have been happening [prep]	8
8	[det] have been happening [prep]	7
9	[that] have been happening [prep]	6
10	that have been happening [prep]	6
11	that have been happening [prep]	6
12	thing have been happening [prep]	5
13	things have been happening [prep]	5
14	[noun pl] have been happening [prep]	5
15	have [adv] been happening [prep]	6
16	have [adv] been happening [prep]	6
17	have been happening [adv] [prep]	10
18	have been happening [adv] [prep]	9
19	have been happening [prep] [art]	41
20	have been happening [prep] [art]	41
21	have been happening [prep] the	37
22	have been happening [prep] the	37
23	have been happening [prep] [noun]	15
24	have been happening [prep] [pron]	15
25	have been happening [prep] [adj]	14
26	have been happening [prep] [pers pn]	14
27	have been happening [prep] [noun prp]	11
28	have been happening [prep] [adj]	8
29	have been happening [prep] you	5
30	have been happening [prep] you	5