SN4 ""

No	Pattern	Freq
1	[noun] [prep] an [adj] and	445
2	[noun sg] [prep] an [adj] and	352
3	[verb] [prep] an [adj] and	281
4	[vb pp] [prep] an [adj] and	153
5	[noun pl] [prep] an [adj] and	83
6	[adv] [prep] an [adj] and	54
7	[adv] [prep] an [adj] and	39
8	[adj] [prep] an [adj] and	38
9	[pron] [prep] an [adj] and	32
10	[v-ing] [prep] an [adj] and	28
11	[adj] [prep] an [adj] and	25
12	[vb past] [prep] an [adj] and	25
13	[pers pn] [prep] an [adj] and	24
14	[be] [prep] an [adj] and	22
15	be [prep] an [adj] and	22
16	[vb -s] [prep] an [adj] and	21
17	[vb base] [prep] an [adj] and	19
18	[to-vb] [prep] an [adj] and	18
19	[vb infin] [prep] an [adj] and	17
20	[conj] [prep] an [adj] and	17
21	[adv prt] [prep] an [adj] and	13
22	it [prep] an [adj] and	10
23	[coord] [prep] an [adj] and	10
24	it [prep] an [adj] and	10
25	see [prep] an [adj] and	9
26	[det] [prep] an [adj] and	8
27	act [prep] an [adj] and	8
28	part [prep] an [adj] and	7
29	seen [prep] an [adj] and	7
30	need [prep] an [adj] and	7