SN4 ""

No	Pattern	Freq
1	at a [adj] stage	303
2	at a late stage	195
3	at a [adj -er] stage	175
4	at a later stage	173
5	at a [adj] stage	126
6	at a late stage	22
7	at a crucial stage	17
8	at a crucial stage	17
9	at a particular stage	14
10	at a particular stage	14
11	at a certain stage	13
12	at a certain stage	13
13	at a similar stage	7
14	at a similar stage	7
15	at a preliminary stage	6
16	at a different stage	6
17	at a critical stage	6
18	at a critical stage	6
19	at a different stage	6
20	at a preliminary stage	6