For a state of being ready:
* -ed: This is the most common suffix for forming the past participle of verbs, and it can be used to indicate a state of being prepared. For example: "He is well-prepared for the exam."
* -able: This suffix indicates the ability to be prepared. For example: "The house is rentable."
* -ful: This suffix indicates fullness or abundance, and can sometimes be used to indicate preparedness. For example: "She is resourceful."
For actions related to preparation:
* -ing: This suffix indicates an ongoing action, and can be used to describe the process of preparing. For example: "They are preparing for the party."
* -ment: This suffix indicates a state or action, and can be used to describe the act of preparation. For example: "The document was a testament to their preparedness."
* -tion: Similar to -ment, this suffix indicates an action or process, and can be used to describe the process of preparing. For example: "The preparation for the event was extensive."
Ultimately, the best suffix to use will depend on the specific context and the desired meaning.