SN4 ""

No	Pattern	Freq
1	been [adv] [vb pp] to	289
2	been successfully [verb] to	18
3	been [adv] [v-ing] to	15
4	been [adv] apply to	13
5	been [adv] applied to	13
6	been [adv] related to	12
7	been [adv] relate to	12
8	been largely [verb] to	11
9	been [adv] confine to	10
10	been [adv] refer to	10
11	been [adv] referred to	10
12	been [adv] confined to	10
13	been so [verb] to	8
14	been [adv] reduced to	7
15	been previously [verb] to	7
16	been [adv] attach to	7
17	been [adv] attached to	7
18	been [adv] put to	7
19	been [adv] put to	7
20	been [adv] exposed to	7
21	been [adv] expose to	7
22	been [adv] reduce to	7
23	been [adv] attract to	6
24	been [adv] attracted to	6
25	been well [verb] to	6
26	been [adv] linked to	6
27	been [adv] link to	6
28	been hard [verb] to	6
29	been better [verb] to	6
30	been widely [verb] to	5