SN4 ""

No	Pattern	Freq
1	[verb] [subord] and [conj]	101
2	[verb] [conj] and [subord]	100
3	[verb] [conj] and when	77
4	[verb] [conj] and when	77
5	[verb] if and [conj]	40
6	[verb] if and [conj]	40
7	[verb] as and [conj]	39
8	[verb] as and [conj]	39
9	[vb pp] [conj] and [conj]	37
10	[vb infin] [conj] and [conj]	27
11	[to-vb] [conj] and [conj]	20
12	[verb] [conj] and where	10
13	[verb] [conj] and until	10
14	[verb] [conj] and where	10
15	[verb] unless and [conj]	10
16	[vb -s] [conj] and [conj]	10
17	[verb] unless and [conj]	10
18	[verb] [conj] and until	10
19	know [conj] and [conj]	8
20	happen [conj] and [conj]	7
21	[verb] [conj] and [coord]	6
22	[verb] when and [conj]	6
23	[verb] [coord] and [conj]	6
24	[verb] [conj] and and	6
25	[verb] when and [conj]	6
26	[verb] and and [conj]	6
27	[verb] [conj] and and	6
28	happen [conj] and [conj]	6
29	[verb] and and [conj]	6
30	[vb base] [conj] and [conj]	6