SN4 ""

No	Pattern	Freq
1	[verb] at the [noun] when	66
2	[noun] at the [noun] when	51
3	[adv] at the [noun] when	43
4	[adv] at the [noun] when	34
5	[noun sg] at the [noun] when	33
6	[be] at the [noun] when	20
7	be at the [noun] when	20
8	[v-ing] at the [noun] when	18
9	[vb past] at the [noun] when	15
10	[noun pl] at the [noun] when	15
11	[was/were] at the [noun] when	15
12	was at the [noun] when	14
13	look at the [noun] when	13
14	just at the [noun] when	10
15	just at the [noun] when	10
16	[vb pp] at the [noun] when	10
17	[to-vb] at the [noun] when	8
18	[vb base] at the [noun] when	8
19	right at the [noun] when	7
20	[pron] at the [noun] when	7
21	[adv prt] at the [noun] when	7
22	right at the [noun] when	7
23	[adj] at the [noun] when	7
24	[pers pn] at the [noun] when	6
25	[adj] at the [noun] when	5
26	at the [noun] [noun] when	49
27	at the [adj] [noun] when	40
28	at the [noun sg] [noun] when	38
29	at the [adj] [noun] when	29
30	at the [noun prp] [noun] when	8