The present perfect tense is a verb form used to describe actions that started in the past and continue up to the present moment, or actions that have a connection to the present. It is formed using the auxiliary verb "has" or "have" followed by the past participle of the main verb. The present perfect tense is used to express actions that have a relevance to the present, such as experiences, accomplishments, or changes that have occurred.For example:* I have studied English for three years. (The action of studying English started in the past and continues up to the present.)* She has traveled to many countries. (The action of traveling has a connection to the present, implying that she has gained experience or knowledge from her travels.)* They have lived in Paris for five years. (The action of living in Paris started in the past and continues up to the present.)Here are 10 examples of the present perfect tense in English, Hindi, and Roman Hindi:1. I have eaten breakfast. - मैंने नाश्ता खाया है। - Main ne nashta khaya hai.2. She has written a book. - उसने एक किताब लिखी है। - Usne ek kitaab likhi hai.3. They have visited...