SN4 ""

No	Pattern	Freq
1	it was [adj] [to-vb] the	486
2	it was possible [verb] the	76
3	it was necessary [verb] the	53
4	it was difficult [verb] the	50
5	it was impossible [verb] the	50
6	it was [adj] to see the	40
7	it was [adj] see the	40
8	it was easy [verb] the	29
9	it was important [verb] the	27
10	it was hard [verb] the	19
11	it was [adj] to keep the	14
12	it was [adj] keep the	14
13	it was essential [verb] the	13
14	it was [adj] get the	12
15	it was [adj] to get the	12
16	it was unable [verb] the	11
17	it was [adj] to imagine the	11
18	it was [adj] hear the	11
19	it was [adj] imagine the	11
20	it was [adj] to hear the	11
21	it was [adj] take the	7
22	it was [adj] to take the	7
23	it was [adj] tell the	7
24	it was nice [verb] the	7
25	it was [adj] to tell the	7
26	it was safe [verb] the	6
27	it was interesting [verb] the	6
28	it was [adj] control the	6
29	it was [adj] watch the	6
30	it was [adj] determine the	6