If the pronunciation of the present form of a regular verb ends in the sound usually written by d or t, the "ed" added to form the past tense or participle should be pronounced as an additional syllable. Otherwise, the sound symbolized by "d" is added to the pronunciation of the present form of the verb, without adding an additional syllable.
I would start by explaining that most verbs add 'ed' to show past simple and past participle. I would provide examples of verbs with 'ed' endings and practice pronunciation together. Using visuals or activities like word sorting can help reinforce learning. I would encourage students to practice saying and writing these verbs to improve their pronunciation skills.
Recite is a regular verb. The past participle of any regular verb can be made by adding "ed" to the end of the word. Recited is the past participle of recite.
Present participle: talking Past participle: talked
"Criticize" is a regular verb; therefore, its past participle is "criticized".
Remind is a regular verb; therefore, its past participle is reminded.
"Close" is a regular verb; therefore, its past participle is "closed".
Recite is a regular verb. The past participle of any regular verb can be made by adding "ed" to the end of the word. Recited is the past participle of recite.
Present participle: talking Past participle: talked
"Advert" is a regular verb; therefore, "adverted" is its past participle.
"Float" is a regular verb; therefore, "floated" is its past participle.
"Stretch" is a regular verb; therefore, the past participle is "stretched".
Remind is a regular verb; therefore, its past participle is reminded.
"Dance" is a regular verb; therefore, its past participle is "danced".
"Criticize" is a regular verb; therefore, its past participle is "criticized".
"Suggest" is a regular verb; therefore, its past participle is "suggested".
Because rescue is a regular verb the past and the past participle is rescued.
"Close" is a regular verb; therefore, its past participle is "closed".
Stayed is the past participle of stay.