SN4 ""

No	Pattern	Freq
1	[noun sg] is [vb pp] [to-vb] the	903
2	[noun] is used [to-vb] the	155
3	[noun] is required [to-vb] the	92
4	[noun] is needed [to-vb] the	88
5	[noun] is designed [to-vb] the	85
6	[noun] is expected [to-vb] the	79
7	[noun prp] is [vb pp] [to-vb] the	79
8	[noun] is intended [to-vb] the	70
9	[noun pl] is [vb pp] [to-vb] the	47
10	[noun] is made [to-vb] the	33
11	[noun] is said [to-vb] the	29
12	[noun] is [vb pp] to make the	27
13	[noun] is set [to-vb] the	26
14	[noun] is [vb pp] to give the	24
15	[noun] is bound [to-vb] the	21
16	[noun] is [vb pp] to meet the	20
17	[noun] is [vb pp] to reduce the	17
18	[noun] is asked [to-vb] the	17
19	[noun] is [vb pp] to provide the	16
20	[noun] is taken [to-vb] the	16
21	action is [vb pp] [to-vb] the	15
22	[noun] is [vb pp] to become the	15
23	[noun] is [vb pp] to cover the	15
24	research is [vb pp] [to-vb] the	15
25	research is [vb pp] [to-vb] the	15
26	action is [vb pp] [to-vb] the	15
27	[noun] is [vb pp] to have the	14
28	attempt is [vb pp] [to-vb] the	14
29	attempt is [vb pp] [to-vb] the	14
30	[noun] is determined [to-vb] the	13