SN4 ""

No	Pattern	Freq
1	[noun] had be keep	60
2	[pron] had be keep	50
3	[pers pn] had be keep	33
4	[noun sg] had be keep	28
5	[noun pl] had be keep	17
6	[noun prp] had be keep	14
7	they had be keep	11
8	they had be keep	11
9	which had be keep	9
10	which had be keep	9
11	[Wh det] had be keep	9
12	he had be keep	8
13	he had be keep	8
14	she had be keep	8
15	she had be keep	8
16	[conj] had be keep	7
17	[Wh pn] had be keep	6
18	who had be keep	6
19	who had be keep	6
20	[coord] had be keep	5
21	had to be keep	57
22	had [prep] be keep	57
23	had [prep] be keep	57
24	had to be keep	57
25	had [adv] be keep	24
26	had [adv] be keep	20
27	had be [adj] keep	15
28	had be [adj] keep	15
29	had be [verb] keep	12
30	had be [vb pp] keep	10