SN4 ""

No	Pattern	Freq
1	[prep] the time when	498
2	[prep] the time when	498
3	[prep] the time when	498
4	at the time when	254
5	at the time when	254
6	to the time when	59
7	to the time when	59
8	from the time when	35
9	from the time when	35
10	of the time when	25
11	of the time when	25
12	for the time when	19
13	for the time when	19
14	about the time when	19
15	about the time when	19
16	during the time when	9
17	during the time when	9
18	as the time when	8
19	as the time when	8
20	like the time when	7
21	like the time when	7
22	since the time when	7
23	in the time when	7
24	since the time when	7
25	in the time when	7
26	around the time when	6
27	around the time when	6
28	between the time when	6
29	between the time when	6
30	until the time when	5