SN4 ""

No	Pattern	Freq
1	the [noun] when	3301
2	the [noun sg] when	2356
3	the [noun pl] when	873
4	the time when	844
5	the time when	767
6	the day when	726
7	the days when	423
8	the day when	303
9	the moment when	272
10	the moment when	262
11	the year when	184
12	the year when	130
13	the period when	102
14	the period when	100
15	the date when	86
16	the date when	84
17	the times when	77
18	the morning when	76
19	the morning when	73
20	the [noun prp] when	71
21	the evening when	65
22	the night when	56
23	the years when	54
24	the war when	53
25	the war when	53
26	the evening when	48
27	the afternoon when	48
28	the night when	45
29	the afternoon when	44
30	the summer when	40