SN4 ""

No	Pattern	Freq
1	when [noun]	7421
2	when [noun prp]	3514
3	when [noun pl]	1818
4	when [noun sg]	1677
5	when [n mass]	350
6	when people	251
7	when people	251
8	when thing	110
9	when things	110
10	when mr	73
11	when mr	73
12	when [letter]	62
13	when child	51
14	when children	47
15	when john	45
16	when john	45
17	when britain	44
18	when britain	44
19	when police	38
20	when police	38
21	when woman	34
22	when women	34
23	when mrs	33
24	when man	33
25	when mrs	33
26	when david	31
27	when david	31
28	when member	30
29	when england	28
30	when england	28