SN4 ""

No	Pattern	Freq
1	but is [verb]	471
2	but is [vb pp]	359
3	but is [v-ing]	98
4	but is expect	14
5	but is expected	13
6	but is think	12
7	but is thought	12
8	but is [vb -s]	11
9	but is see	10
10	but is base	10
11	but is based	10
12	but is seen	10
13	but is make	9
14	but is have	9
15	but is believed	8
16	but is believe	8
17	but is do	8
18	but is look	7
19	but is use	7
20	but is looking	7
21	but is save	6
22	but is keep	6
23	but is allowed	6
24	but is saved	6
25	but is allow	6
26	but is made	6
27	but is consider	5
28	but is say	5
29	but is used	5
30	but is intended	5