SN4 ""

No	Pattern	Freq
1	[verb] [adv] [been] at	133
2	have [adv] [been] at	133
3	[vb past] [adv] [been] at	62
4	had [adv] [been] at	58
5	[vb -s] [adv] [been] at	37
6	has [adv] [been] at	34
7	[vb base] [adv] [been] at	33
8	have [adv] [been] at	21
9	've [adv] [been] at	12
10	[adv] [adv] [been] at	9
11	[adv] [adv] [been] at	6
12	[adv] have [been] at	43
13	[adv] [verb] [been] at	43
14	[adv] have [been] at	27
15	[adv] [vb infin] [been] at	27
16	[adv] [adv] [been] at	9
17	[adv] [adv] [been] at	9
18	[adv] had [been] at	8
19	[adv] [vb past] [been] at	8
20	[adv] [been] [verb] at	291
21	[adv] [been] [vb pp] at	249
22	[adv] [been] [adj] at	60
23	[adv] [been] [adj] at	59
24	[adv] [been] [v-ing] at	40
25	[adv] [been] [adv] at	26
26	[adv] [been] look at	23
27	[adv] [been] [adv] at	18
28	[adv] [been] good at	15
29	[adv] [been] looking at	15
30	[adv] [been] good at	14