SN4 ""

No	Pattern	Freq
1	[vb pp] at different [noun pl]	145
2	[verb] at different times	95
3	[v-ing] at different [noun pl]	60
4	[verb] at different levels	37
5	[vb base] at different [noun pl]	36
6	[vb infin] at different [noun pl]	28
7	[verb] at different rates	26
8	look at different [noun pl]	24
9	[vb past] at different [noun pl]	19
10	[verb] at different speeds	16
11	[to-vb] at different [noun pl]	16
12	[verb] at different stages	15
13	[vb -s] at different [noun pl]	12
14	[verb] at different places	11
15	occur at different [noun pl]	10
16	work at different [noun pl]	10
17	looking at different [noun pl]	10
18	take at different [noun pl]	10
19	taken at different [noun pl]	9
20	use at different [noun pl]	8
21	arrive at different [noun pl]	8
22	made at different [noun pl]	7
23	used at different [noun pl]	7
24	[verb] at different temperatures	7
25	make at different [noun pl]	7
26	move at different [noun pl]	7
27	operate at different [noun pl]	7
28	vary at different [noun pl]	6
29	[verb] at different points	6
30	operating at different [noun pl]	5