SN4 ""

No	Pattern	Freq
1	[noun] [was/were] for	1106
2	[pron] [was/were] for	840
3	[noun sg] [was/were] for	753
4	[pers pn] [was/were] for	704
5	it [was/were] for	544
6	it [was/were] for	544
7	[noun pl] [was/were] for	262
8	[adj] [was/were] for	252
9	[det] [was/were] for	187
10	that [was/were] for	101
11	that [was/were] for	101
12	[verb] [was/were] for	95
13	they [was/were] for	68
14	they [was/were] for	64
15	[noun prp] [was/were] for	63
16	[Wh det] [was/were] for	60
17	[vb past] [was/were] for	56
18	this [was/were] for	50
19	this [was/were] for	50
20	[num] [was/were] for	43
21	he [was/were] for	43
22	he [was/were] for	43
23	[adv] [was/were] for	43
24	which [was/were] for	42
25	which [was/were] for	42
26	there [was/were] for	38
27	there [was/were] for	38
28	[ex0] [was/were] for	38
29	[adv] [was/were] for	37
30	[conj] [was/were] for	37