In English we add an “ED” to verbs to make them past tense or a past participle (verb acting like an adjective). When a verb is modified by adding an “ED” ending use the “T or D” sound according to the following rule:

Say “ID when the word ends in a t or d sound.

Melt/melted

Trade/traded

Say “D when the word ends in a vowel or other voiced sound like the m, n, ng, l, b, d, g, v, th, r, z, zh, or j sound.

Calm/calmed

Can/canned

Long/longed

Call/called

Describe/described

Add/added

Tag/tagged

Live/lived

Breathe/breathed

Hire/hired

Amuse/amused

Sabotage/sabotaged

Judge/judged

Say “T when the word ends in a voiceless sound like a p, k, f, or sh sound.

Tip/tipped

Talk/talked

Cough/coughed

Wish/wished

 

Practice with Tarle Speech Google Books:

Tarle Speech & Language American English Pronunciation Lessons –

Learn to Pronounce -ED Suffix in English