present tense and present progressive tense are ok: be, being; feel, feeling;taste, tasting; smell, smelling; hear, hering. He is being quiet right now.=He is quiet.=He is acting quiet. "being" is really about this moment. What's going on? U r being wired. I am felling anxious. I feel anxious. I am felling sick. I feel sick. It can be used both ways for sure. "ing form" stress something temporary. Do you hear that? = Are you hearing that? Do you see that?= Are you seeing that?

Don't put "ing" at end of state verbs, "seem""appear" ✓:She appears to be reasonable. ✓:She seems to be reasonable. ✗:She is seeming to be reasonable. ✗:She is appearing to be reasonable. That's because they are state verbs, not action verbs. "Appearing" is right somehow, but it will be another meaning, and it is a action verb, meaning "performing".

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ing , the present moment , something temporary 1. be he is being quiet right now . he is quiet . he is acting quiet . you are being weird , what's going on ? 2. feel i am feeling anxious . i am feeling sick . = i feel sick . 3. smell i am smelling him *** do you smell that ? 4. taste this taste good = this is tasting good . 5. hearing / seeing are / do you seeing that verbs can't be use ing seem , it seems strange . appear , she appears to be reasonable . vi. 出现；显得；似乎；出庭；登场 此时seem = appear i can't tell what i am tasting . maybe is lemon . i am feeling little nervous about this .