In Finnish grammar, the Tenses Indicative Theory refers to the system of tenses used to indicate the time or the state of an action. The indicative mood is used to express facts, statements, and beliefs, and is the most commonly used mood in Finnish.

There are three main tenses in Finnish indicative: present, past, and future. Each tense has different forms to indicate whether the action is definite or indefinite. For example, in the present tense, the form “syön” means “I am eating,” while “syönkö” means “Am I eating?” The past tense forms follow a similar pattern, such as “söin” for “I ate” and “söinkö” for “Did I eat?”

In addition to the basic tenses, Finnish also has compound tenses like the perfect, pluperfect, and future perfect. These tenses indicate actions that have been completed or will be completed before a certain point in time. For example, “olen syönyt” means “I have eaten” and “olin syönyt” means “I had eaten.”

Understanding the tenses indicative theory is crucial for mastering Finnish grammar and conveying accurate information about the timing of actions or events.