SN4 ""

No	Pattern	Freq
1	[be] usually [verb] to	222
2	be usually [verb] to	222
3	[be] usually [vb pp] to	219
4	[is] usually [verb] to	136
5	is usually [verb] to	132
6	are usually [verb] to	63
7	[am/are] usually [verb] to	63
8	[be] usually refer to	34
9	[be] usually referred to	33
10	[was/were] usually [verb] to	23
11	[be] usually confine to	20
12	[be] usually confined to	20
13	[be] usually considered to	12
14	[be] usually consider to	12
15	was usually [verb] to	12
16	were usually [verb] to	11
17	[be] usually restricted to	10
18	[be] usually restrict to	10
19	[be] usually limit to	9
20	[be] usually attributed to	9
21	[be] usually limited to	9
22	[be] usually attribute to	9
23	[be] usually left to	8
24	[be] usually leave to	8
25	[be] usually related to	7
26	[be] usually relate to	7
27	[be] usually taken to	7
28	[be] usually take to	7
29	[be] usually assumed to	5
30	[be] usually assume to	5