1. He likes helping poor people. 2. It is good that he likes helping poor people. 3. I think it good that he likes helping poor people.
   

3-1. I think it good for him to help poor people. 3-2. I think it good to help poor people. (Are the sentences all grammatical? I think as #1 and #2 are grammatical, the other sentences can be grammatical. Is that right?)

1. I believe it good that he likes helping poor people.
   
2. I feel it good that he likes helping poor people.
   
3. I consider it good that he likes helping poor people.
   
4. I find it good that he likes helping poor people.
   
5. I suppose it good that he likes helping poor people.
   

(I substituted other verbs for good. Are all the sentences grammatical?)