SN4 ""

No	Pattern	Freq
1	have be at [noun]	370
2	have [been] at [noun]	369
3	have been at [noun]	369
4	have [be] at [noun sg]	199
5	had [be] at [noun]	148
6	have [be] at [noun prp]	113
7	have [be] at [noun pl]	57
8	have [be] at [noun]	56
9	has [be] at [noun]	54
10	have [be] at [noun]	44
11	have [be] at work	41
12	have [be] at work	41
13	have [be] at home	38
14	have [be] at home	38
15	have [be] at pains	31
16	have [be] at pain	31
17	've [be] at [noun]	24
18	have [be] at school	23
19	have [be] at school	23
20	'd [be] at [noun]	18
21	's [be] at [noun]	14
22	have [be] at war	13
23	have [be] at war	13
24	have [be] at loggerheads	10
25	have [be] at loggerhead	10
26	have [be] at oxford	8
27	have [be] at oxford	8
28	have [be] at risk	7
29	to have [be] at [noun]	7
30	have [be] at risk	7