SN4 ""

No	Pattern	Freq
1	[noun sg] before it [verb]	351
2	[noun sg] before it [verb]	351
3	[noun sg] before it [vb -s]	190
4	[noun sg] before it [vb past]	161
5	[noun sg] before it have	34
6	[noun sg] before it become	29
7	[noun sg] before it reach	26
8	[noun sg] before it get	25
9	[noun sg] before it go	21
10	[noun sg] before it reaches	18
11	[noun sg] before it had	18
12	[noun sg] before it becomes	16
13	[noun sg] before it gets	15
14	[noun sg] before it start	13
15	[noun sg] before it goes	13
16	[noun sg] before it became	13
17	[noun sg] before it has	11
18	[noun sg] before it got	10
19	time before it [verb]	9
20	[noun sg] before it come	8
21	[noun sg] before it starts	8
22	[noun sg] before it went	8
23	[noun sg] before it reached	8
24	[noun sg] before it stop	7
25	[noun sg] before it fall	7
26	[noun sg] before it begin	6
27	[noun sg] before it occur	6
28	water before it [verb]	6
29	[noun sg] before it enter	6
30	[noun sg] before it leave	6