SN4 ""

No	Pattern	Freq
1	[verb] once and [prep] [adj]	78
2	[noun] once and [prep] [adj]	76
3	[noun sg] once and [prep] [adj]	56
4	[adv] once and [prep] [adj]	27
5	[vb pp] once and [prep] [adj]	27
6	[adv prt] once and [prep] [adj]	22
7	[to-vb] once and [prep] [adj]	19
8	[noun pl] once and [prep] [adj]	17
9	[pron] once and [prep] [adj]	14
10	[pers pn] once and [prep] [adj]	13
11	a once and [prep] [adj]	12
12	[art] once and [prep] [adj]	12
13	[prep] once and [prep] [adj]	12
14	[art] once and [prep] [adj]	12
15	a once and [prep] [adj]	12
16	[prep] once and [prep] [adj]	12
17	out once and [prep] [adj]	11
18	out once and [prep] [adj]	11
19	[vb infin] once and [prep] [adj]	9
20	[vb past] once and [prep] [adj]	8
21	[vb base] once and [prep] [adj]	7
22	[adj] once and [prep] [adj]	7
23	problem once and [prep] [adj]	7
24	it once and [prep] [adj]	6
25	it once and [prep] [adj]	6
26	problem once and [prep] [adj]	5
27	[v-ing] once and [prep] [adj]	5
28	[adv] once and [prep] [adj]	5
29	once and [prep] [adj] [adj]	6
30	once and [prep] [det] [adj]	6