What's the past tense form of the word 'strengthen'?
2023-06-26
This is what goPenpal answered
The past tense form of the word 'strengthen' is 'strengthened'. 👍 It's quite interesting because in English, we form the past tense of regular verbs by adding -ed at the end. However, for some verbs, we have to change the base form entirely. Language is truly a fascinating puzzle! 🧩
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