In Ukrainian grammar, there are three main tenses to express actions in the past, present, and future: the past tense, the present tense, and the future tense. Tense comparison is the process of understanding and differentiating between these tenses.

The past tense is used to describe actions that were completed in the past. It is formed by adding specific endings to the verb stem. The present tense, on the other hand, is used to describe actions that are happening currently or regularly. It is formed by adding different endings to the verb stem. Lastly, the future tense is used to describe actions that will occur in the future. It is formed by using the auxiliary verb “буду” (will) followed by the infinitive form of the main verb.

When comparing the tenses, it is important to understand the specific endings and verb forms used in each tense. It is also essential to understand the context in which each tense is used. By understanding the tense comparison, learners of Ukrainian grammar will be able to communicate effectively and accurately express actions in the past, present, and future.