SN4 ""

No	Pattern	Freq
1	[noun] [conj] they were at	42
2	[noun sg] [conj] they were at	24
3	[adv] [conj] they were at	15
4	[noun pl] [conj] they were at	14
5	[verb] [conj] they were at	14
6	[adj] [conj] they were at	13
7	[adv] [conj] they were at	13
8	[adj] [conj] they were at	9
9	[prep] [conj] they were at	8
10	[prep] [conj] they were at	8
11	as [conj] they were at	7
12	as [conj] they were at	7
13	[conj] [conj] they were at	6
14	[vb past] [conj] they were at	5
15	[conj] [conj] they were at	6
16	[conj] they were [verb] at	99
17	[conj] they were [vb pp] at	55
18	[conj] they were [v-ing] at	44
19	[conj] they were [adv] at	29
20	[conj] they were [adj] at	29
21	[conj] they were [adj] at	24
22	[conj] they were [adv] at	19
23	[conj] they were look at	14
24	[conj] they were looking at	13
25	[conj] they were [not/n't] at	6
26	[conj] they were [noun] at	6
27	[conj] they were not at	6
28	[conj] they were [noun pl] at	5
29	[conj] they were at [art]	51
30	[conj] they were at [art]	51