SN4 ""

No	Pattern	Freq
1	[conj] it was necessary	128
2	that it was necessary	62
3	[that] it was necessary	62
4	that it was necessary	62
5	[noun] it was necessary	55
6	[noun sg] it was necessary	41
7	[subord] it was necessary	37
8	[verb] it was necessary	33
9	[coord] it was necessary	29
10	[adv] it was necessary	28
11	and it was necessary	20
12	and it was necessary	20
13	[Wh adv] it was necessary	16
14	[vb past] it was necessary	15
15	[noun pl] it was necessary	12
16	if it was necessary	11
17	[adv] it was necessary	11
18	if it was necessary	11
19	[adj] it was necessary	10
20	why it was necessary	9
21	[pron] it was necessary	9
22	why it was necessary	9
23	because it was necessary	9
24	but it was necessary	9
25	because it was necessary	9
26	but it was necessary	9
27	say it was necessary	7
28	[Wh det] it was necessary	7
29	feel it was necessary	7
30	which it was necessary	6