The Indicative Mood
Indicates the verbal idea as actual.
The Declarative Indicative
This use of the indicative makes a simple statement of fact.
The Interrogative Indicative
The indicative mood is used to ask a simple question. Reality is implied in a fact asked about in the indicative mood.
The Cohortative Indicative
The indicative may be used to express a command or a strong suggestion. This is especially true of the future indicative.
The Potential Indicative
The indicative is sometimes accompanied by the idea of contingency. This idea is given by the use of ἄν, the meaning of the verb, or by context. ἄν may or may not be used.
The indicative may be used to express a necessity and from the necessity an obligation. Usually with ἔδει.
Wish (unfulfilled- ὀφείλον – would that) or impulse.
Used in Certain Forms of Conditions
Positive and Negative
οὐ – expects an affirmative reply
μή – expects a negative answer