SN4 ""

No	Pattern	Freq
1	[pron] have been at [noun]	167
2	[pron] have been at [art]	160
3	[pron] have been at [art]	160
4	[pron] have been at the	146
5	[pron] have been at the	146
6	[pron] have been at [noun sg]	91
7	[pron] have been at [noun prp]	58
8	[pron] have been at [pron]	44
9	[pron] have been at [adj]	41
10	[pron] have been at [pers pn]	31
11	[pron] have been at [adv]	25
12	[pron] have been at it	25
13	[pron] have been at [adv]	25
14	[pron] have been at it	25
15	[pron] have been at [det]	24
16	[pron] have been at least	23
17	[pron] have been at least	23
18	[pron] have been at home	19
19	[pron] have been at home	19
20	[pron] have been at [noun pl]	18
21	[pron] have been at school	15
22	[pron] have been at school	15
23	[pron] have been at a	13
24	[pron] have been at [pos pn]	13
25	[pron] have been at a	12
26	[pron] have been at pains	10
27	[pron] have been at pain	10
28	[pron] have been at work	10
29	[pron] have been at work	10
30	[pron] have been at [adj]	9