SN4 ""

No	Pattern	Freq
1	[adj] [noun] when it became	17
2	[adj] [noun] when it became	13
3	[prep] [noun] when it became	10
4	[prep] [noun] when it became	10
5	[noun] [noun] when it became	9
6	[art] [noun] when it became	9
7	[art] [noun] when it became	9
8	the [noun] when it became	8
9	the [noun] when it became	8
10	[noun sg] [noun] when it became	7
11	[noun] [noun] when it became	9
12	[noun] [noun sg] when it became	5
13	[noun] when it became [adj]	35
14	[noun] when it became [adj]	35
15	[noun] when it became clear	10
16	[noun] when it became clear	10
17	[noun] when it became [vb pp]	7
18	[noun] when it became [verb]	7
19	[noun] when it became apparent	5
20	[noun] when it became [art]	5
21	[noun] when it became apparent	5
22	[noun] when it became [art]	5