1. Conditional
Indicates a conditional state that will cause something else to happen.
Common key words: could, would, might, or must.

2. Conditional Examples:
If we use our time wisely (conditional state), we might get to go home early. (What will happen?)
Ivan could find a better job if he visited an employment agency. (What is the conditional state?) (What would happen?)
Hill would arrive in town earlier if he leaves Brantley County tomorrow morning. (What is the conditional state?) (What would happen?)

3. Interrogative Indicates a state of questioning
In the interrogative mood, the subject-verb order is inverted.

4. Interrogative Examples: Will Dad take out the trash tomorrow?
Have we completed the final project?
Will you walk to the library tomorrow?