SN4 ""

No	Pattern	Freq
1	[Wh det] be [vb pp] and	337
2	which be [verb] and	241
3	what be [verb] and	222
4	[Wh det] is [verb] and	205
5	[Wh det] was [verb] and	134
6	[Wh det] be [v-ing] and	122
7	[Wh det] be happen and	88
8	[Wh det] be happening and	86
9	[Wh det] are [verb] and	73
10	[Wh det] 's [verb] and	29
11	[Wh det] were [verb] and	28
12	[Wh det] be required and	11
13	[Wh det] be require and	11
14	[Wh det] be [to-vb] and	10
15	[Wh det] be say and	10
16	[Wh det] be said and	10
17	[Wh det] be know and	9
18	[Wh det] be known and	9
19	[Wh det] be wanted and	8
20	[Wh det] be want and	8
21	[Wh det] be needed and	7
22	[Wh det] be expect and	7
23	[Wh det] be give and	7
24	[Wh det] be expected and	7
25	[Wh det] be need and	7
26	[Wh det] be given and	6
27	[Wh det] be involved and	6
28	[Wh det] be taught and	6
29	[Wh det] be involve and	6
30	[Wh det] be teach and	6