Should "Should" is most commonly used to make recommendations or give advice. It can also be used to express obligation as well as expectation. Examples: When you go to Berlin, you should visit the palaces in Potsdam. recommendation You should focus more on your family and less on work. advice I really should be in the office by 7:00 AM. obligation By now, they should already be in Dubai. expectation Using "Should" in Present, Past, and Future Most modal verbs behave quite irregularly in the past and the future. Study the chart below to learn how "should" behaves in different contexts. Modal Use Positive Forms 1. = Present 2. = Past 3. = Future Negative Forms 1. = Present 2. = Past 3. = Future You can also use: should recommendation, advisability 1. People with high cholesterol should eat low-fat foods.2. Frank should have eaten low-fat foods. That...