SN4 ""

No	Pattern	Freq
1	[adv] used for	527
2	also used for	55
3	often used for	49
4	widely used for	34
5	commonly used for	27
6	mainly used for	27
7	only used for	21
8	normally used for	18
9	usually used for	17
10	still used for	16
11	generally used for	16
12	now used for	15
13	previously used for	12
14	sometimes used for	10
15	traditionally used for	10
16	then used for	10
17	frequently used for	9
18	much used for	8
19	once used for	8
20	longer used for	7
21	actually used for	6
22	originally used for	6
23	currently used for	6
24	mostly used for	6
25	rarely used for	6
26	probably used for	6
27	primarily used for	6
28	already used for	5
29	never used for	5