SN4 ""

No	Pattern	Freq
1	[verb] a [noun] for [det]	618
2	be a [noun] for [det]	377
3	[be] a [noun] for [det]	377
4	[prep] a [noun] for [det]	356
5	[prep] a [noun] for [det]	356
6	[is] a [noun] for [det]	177
7	is a [noun] for [det]	142
8	[adv] a [noun] for [det]	126
9	[vb infin] a [noun] for [det]	120
10	as a [noun] for [det]	118
11	as a [noun] for [det]	118
12	[to-vb] a [noun] for [det]	104
13	[vb past] a [noun] for [det]	101
14	[be] a [noun] for [det]	89
15	be a [noun] for [det]	89
16	[vb base] a [noun] for [det]	87
17	[adv] a [noun] for [det]	83
18	have a [noun] for [det]	78
19	[vb pp] a [noun] for [det]	77
20	[conj] a [noun] for [det]	71
21	[vb -s] a [noun] for [det]	69
22	[was/were] a [noun] for [det]	63
23	[noun] a [noun] for [det]	61
24	[v-ing] a [noun] for [det]	60
25	was a [noun] for [det]	59
26	of a [noun] for [det]	57
27	of a [noun] for [det]	57
28	provide a [noun] for [det]	52
29	[pron] a [noun] for [det]	51
30	[coord] a [noun] for [det]	50