SN4 ""

No	Pattern	Freq
1	[pron] had do [pos pn]	72
2	[pers pn] had do [pos pn]	64
3	[noun] had do [pos pn]	63
4	[noun prp] had do [pos pn]	27
5	[noun sg] had do [pos pn]	19
6	[noun pl] had do [pos pn]	16
7	he had do [pos pn]	16
8	he had do [pos pn]	16
9	she had do [pos pn]	15
10	she had do [pos pn]	15
11	i had do [pos pn]	14
12	i had do [pos pn]	14
13	they had do [pos pn]	13
14	they had do [pos pn]	12
15	[Wh pn] had do [pos pn]	7
16	who had do [pos pn]	7
17	who had do [pos pn]	7
18	had [adv] do [pos pn]	31
19	had [adv] do [pos pn]	18
20	had [not/n't] do [pos pn]	13
21	had not do [pos pn]	13
22	had n't do [pos pn]	8
23	had already do [pos pn]	6
24	had already do [pos pn]	6
25	had [vb pp] do [pos pn]	5
26	had been do [pos pn]	5
27	had [been] do [pos pn]	5
28	had be do [pos pn]	5
29	had [be] do [pos pn]	5
30	had not do [pos pn]	5