SN4 ""

No	Pattern	Freq
1	be [vb pp] at every	54
2	[be] [vb pp] at every	54
3	be [vb pp] at every	24
4	[be] [vb pp] at every	24
5	[was/were] [vb pp] at every	10
6	[verb] [vb pp] at every	9
7	have [vb pp] at every	8
8	[conj] [vb pp] at every	8
9	[noun] [vb pp] at every	8
10	[coord] [vb pp] at every	7
11	were [vb pp] at every	7
12	[is] [vb pp] at every	7
13	is [vb pp] at every	7
14	been [vb pp] at every	6
15	and [vb pp] at every	6
16	and [vb pp] at every	6
17	[been] [vb pp] at every	6
18	[adv] [vb pp] at every	5
19	[adv] [vb pp] at every	5
20	[vb base] [vb pp] at every	5
21	[vb pp] [adv] at every	7
22	[vb pp] [adv prt] at every	5
23	[vb pp] at [adv] every	20
24	[vb pp] at [adv] every	20
25	[vb pp] at least every	15
26	[vb pp] at least every	15
27	[vb pp] at [noun] every	5
28	[vb pp] at every [noun]	83
29	[vb pp] at every [noun sg]	83
30	[vb pp] at every stage	25