SN4 ""

No	Pattern	Freq
1	[verb] been keeping	90
2	have been keeping	90
3	[vb base] been keeping	33
4	[vb past] been keeping	31
5	had been keeping	24
6	[vb -s] been keeping	21
7	've been keeping	17
8	have been keeping	16
9	has been keeping	15
10	'd been keeping	7
11	's been keeping	6
12	[adv] been keeping	6
13	been keeping [art]	31
14	been keeping [art]	31
15	been keeping [noun]	22
16	been keeping a	22
17	been keeping [pron]	18
18	been keeping a	14
19	been keeping [pers pn]	12
20	been keeping [noun sg]	11
21	been keeping [adj]	10
22	been keeping the	9
23	been keeping the	9
24	been keeping an	8
25	been keeping [prep]	7
26	been keeping [adv]	7
27	been keeping [prep]	7
28	been keeping [adj]	7
29	been keeping it	6
30	been keeping [adv prt]	6