Present perfect tense-verb with the subjuective pronouns (have/has seen)

1.Delete the ن/nu:n/ from the end of an infinitive first. We will have a verb in simple past tense. Like ديدن /didan/ become ديد/did/.
2.Then, add ه /he/ sound to this verb. We will have ديده /dideh/.
3.Next, put ام /am/, اي /i:/, است /ast/, ايم /im/, ايد /id/, اند /and/after the newly made verb.

ديد /did/ + ه /he/ + ام /am/ = ديده ام/dideh am/ = I have seen.
ديد /did/ + ه /he/ + اي/i:/ = ديده اي/dideh i:/ = You have seen.
ديد /did/ + ه /he/ + است/ast/ = ديده است/dideh ast/ = He/She has seen.
ديد /did/ + ه /he/ + ايم/im/ = ديده ايم/dideh im/ = We have seen.
ديد /did/ + ه /he/ + ايد/id/ = ديده ايد/dideh id/ = You have seen.
ديد /did/ + ه /he/ + اند/and/ = ديده اند/dideh and/ = They have seen.