I suggest that he finish the report by Friday. The manager insists that she be present at the meeting. It is essential that everyone arrive on time. They demanded that the prisoner be released. The doctor recommended that he stop smoking. We propose that the company invest in new technology. The law requires that you have a valid ID. It is vital that the patient receive treatment immediately.
Past Subjunctive (hypothetical, wishes)
If I were you, I would accept the offer. I wish she were here to celebrate with us. He talks as if he were the expert. If it were not for your help, I would be lost. I would rather I were on vacation right now. Suppose he were to win the lottery? I wish it were summer all year round. If I were rich, I would buy a yacht.
Negative Subjunctive
I recommend that he not be late. She suggested that they not wait for her. It is important that you not miss the deadline. They demanded that the prisoner not be harmed. The judge ordered that the evidence not be tampered with.
Fixed Expressions
God save the King! Long live the Queen! Be that as it may, we have to finish. Heaven forbid that anything goes wrong. Come what may, I will always love you. Suffice it to say that we are disappointed. Far be it from me to question your judgement.
Passive Subjunctive
It is important that the letter be sent today. The committee recommended that the building be demolished. It is essential that the rules be followed.