SN4 ""

No	Pattern	Freq
1	be [adj] because the [noun sg]	201
2	[be] [adj] because the [noun sg]	189
3	[is] [adj] because the [noun sg]	86
4	is [adj] because the [noun sg]	80
5	[was/were] [adj] because the [noun sg]	53
6	was [adj] because the [noun sg]	43
7	be [adj] because the [noun sg]	37
8	[be] [adj] because the [noun sg]	37
9	[be] necessary because the [noun sg]	16
10	[be] necessary because the [noun sg]	16
11	[am/are] [adj] because the [noun sg]	15
12	are [adj] because the [noun sg]	14
13	[be] important because the [noun sg]	10
14	[be] important because the [noun sg]	10
15	were [adj] because the [noun sg]	10
16	been [adj] because the [noun sg]	9
17	[been] [adj] because the [noun sg]	9
18	[be] [adj -er] because the [noun sg]	7
19	[be] possible because the [noun sg]	7
20	[be] possible because the [noun sg]	7
21	's [adj] because the [noun sg]	6
22	[be] difficult because the [noun sg]	5
23	[be] difficult because the [noun sg]	5