In English, the pronunciation of the past tense of "feed" is /fi:d/ (fead). It is important to note that the past tense does not change the pronunciation of the word "feed" drastically. The only difference lies in the vowel sound, where the sound /i/ is elongated and pronounced as /i:/.
The word "feed" in its past tense form is commonly used when referring to the action of providing food or nourishment to someone or something in the past. For example, "Yesterday, I fed my cat a can of tuna." Here, "fed" is the past tense form of "feed."
Remember that pronunciation plays a crucial role in conveying meaning in English. So, it is important to pay attention to the correct pronunciation of words and their past tense forms in order to be easily understood by native English speakers.