дидан: to see
I didn’t see anything.
Омадам, то ки туро бинам.
I came to see you.
If you need to learn more verbs, you can download a pdf with about 100 verbs, showing the future stems, here: Most Common Verbs. You can also see all the verbs that have appeared in Word of the Day here: verbs.
The verb дидан is also a helper verb. Here are some examples –
нағз дидан: to like, to love
ганда дидан: to dislike, to hate
рӯз дидан: to live
ҷазо дидан: to be punished
тайёрӣ дидан: to prepare, to get ready