1. NO OBLIGATION
1.1. NOT HAVE TO
1.2. NOT NEED TO
2. OPINION
2.1. INFORMAL
2.1.1. ASKING FOR OPINION
2.1.1.1. How do you feel about .. ?
2.1.1.2. What do you think about…?
2.1.1.3. What is your opinion on…?
2.1.1.4. What are your feelings about…?
2.1.1.5. Do you have any opinions on…?
2.1.2. GIVING OPINION
2.1.2.1. I think…
2.1.2.2. I don’t think…
2.1.2.3. I feel…
2.1.2.4. I don’t feel…
2.1.2.5. I believe…
2.1.2.6. I don’t believe….
2.2. FORMAL
2.2.1. ASKING FOR OPINION
2.2.1.1. What is your take on…?
2.2.1.2. What are your thoughts on…?
2.2.1.3. Where do you stand on…?
2.2.1.4. What is your view on…?
2.2.1.5. What do you reckon about…?
2.2.2. GIVING OPINION
2.2.2.1. My impression on …
2.2.2.2. My take on …
2.2.2.3. My stance on …
2.2.2.4. I reckon…
2.2.2.5. From my point of view,…
2.2.2.6. In my opinion,…
3. OBLIGATION
3.1. USING MUST
3.2. USING HAVE TO
3.3. COMMON PHRASES
3.3.1. NEED TO
3.3.2. OBLIGED TO
3.3.3. REQUIRED TO
4. PROHIBITION
4.1. USING MODALS
4.1.1. MUST NOT
4.1.2. CANNOT
4.2. USING NEGATIVE IMPERATIVE
4.3. COMMON PHRASES
4.3.1. PROHIBITED TO
4.3.2. FORBIDDEN TO
4.3.3. NOT ALLOWED TO
4.3.4. NOT PERMITTED TO