Let´s talk about pronunciation tips ...

The rule on the pronunciation of ed endings refers to regular VERBS in English phonetics only and does not include adjectives like naked which is pronounced /neykid/ and not /neykt/.

The following -ed words used as ADJECTIVES are pronounced with /ɪd/:

aged
dogged
ragged
blessed
learned
wicked
crooked
naked
wretched

So we say:

an aged man /ɪd/
a blessed nuisance /ɪd/
a dogged persistence /ɪd/
a learned professor - the professor, who was truly learned /ɪd/
a wretched beggar - the beggar was wretched /ɪd/

But when used as real VERBS (past simple and past participle), the normal rules apply and we say:

he aged quickly /d/
he blessed me /t/
they dogged him /d/
he has learned well /d/ or /t/


Check these videos and let´s star practicing ed ending pronunciation...

https://www.youtube.com/watch?v=j32SurxnE4s

https://www.youtube.com/watch?v=4_s12MkuvFQ

https://www.youtube.com/watch?v=VVCTkPA9Kd0