SN4 ""

No	Pattern	Freq
1	[modal v] be referred to	246
2	[vb mod] be referred to	246
3	[prep] be referred to	90
4	to be referred to	89
5	[prep] be referred to	89
6	to be referred to	89
7	will be referred to	67
8	will be referred to	66
9	should be referred to	47
10	should be referred to	47
11	may be referred to	44
12	[adv] be referred to	44
13	may be referred to	44
14	[adv] be referred to	40
15	can be referred to	35
16	can be referred to	35
17	must be referred to	17
18	must be referred to	17
19	[adj] be referred to	16
20	1991 be referred to	14
21	1991 be referred to	14
22	would be referred to	14
23	[num] be referred to	14
24	would be referred to	14
25	[noun] be referred to	12
26	shall be referred to	10
27	shall be referred to	10
28	[noun sg] be referred to	10
29	then be referred to	8
30	also be referred to	8