SN4 ""

No	Pattern	Freq
1	who at the [noun]	59
2	who at the [noun sg]	58
3	who at the time	25
4	who at the time	25
5	who at the [adj]	13
6	who at the moment	7
7	who at the moment	7
8	who at the start	6
9	who at the [det]	6
10	who at the age	6
11	who at the start	6
12	who at the age	6
13	who at the end	5
14	who at the same	5
15	who at the same	5
16	who at the end	5
17	[noun] who at the	27
18	[noun pl] who at the	11
19	[noun sg] who at the	10
20	who [verb] at the	298
21	who [vb past] at the	197
22	who be at the	106
23	who [be] at the	106
24	who [was/were] at the	66
25	who [vb -s] at the	57
26	who work at the	48
27	who was at the	47
28	who [vb base] at the	44
29	who worked at the	26
30	who [am/are] at the	21