In Nepali Grammar, the concept of conditionals is expressed through the use of verb forms and word order. The conditionals theory revolves around the idea that certain actions or events can only occur if certain conditions are met.

There are three main types of conditionals in Nepali Grammar: real conditionals, hypothetical conditionals, and future conditionals. Real conditionals are used to express situations that are likely to happen if specific conditions are fulfilled. Hypothetical conditionals, on the other hand, are used to talk about situations that are based on imagined or unreal conditions. Future conditionals are used to discuss future actions that depend on certain conditions being met.

The verb forms used in conditionals can vary depending on the type of conditional being expressed. For example, real conditionals typically use the present tense verb form, while hypothetical conditionals often use the past tense verb form. Additionally, word order is important in expressing conditionals, with the condition clause usually appearing before the main clause.

Overall, understanding the conditionals theory in Nepali Grammar is essential for effective communication and expressing hypothetical or future situations in the language.