SN4 ""

No	Pattern	Freq
1	at [art] [adj] stage	683
2	at [art] [adj] stage	683
3	at a [adj] stage	480
4	at an [adj] stage	354
5	at [art] early stage	314
6	at the [adj] stage	200
7	at the [adj] stage	200
8	at a [adj] stage	126
9	at [art] late stage	22
10	at [art] crucial stage	18
11	at [art] advanced stage	18
12	at [art] halfway stage	17
13	at [art] particular stage	14
14	at [art] half-way stage	13
15	at [art] certain stage	13
16	at [art] present stage	12
17	at [art] interim stage	10
18	at [art] experimental stage	9
19	at [art] final stage	8
20	at [art] preliminary stage	7
21	at [art] similar stage	7
22	at [art] semi-final stage	6
23	at [art] secondary stage	6
24	at [art] different stage	6
25	at [art] critical stage	6
26	at [art] correct stage	5
27	at [art] interlocutory stage	5