When it comes to accurately pronouncing the English word "powerful," it's all about the intonation. This four-syllable word begins with a soft "P" sound and is followed by a short "O" sound. The third syllable is a drawn-out "W" sound, and the final syllable is an emphatic "Ful" sound. The "O" and "W" sounds should be emphasized, while the "P" and "Ful" sounds should be spoken with a heavier tone.

To practice saying the word correctly, start by saying the first two syllables, "Pow," in an even tone. Then, emphasize the "W" sound by stretching it out and speaking with a slightly louder voice. Finally, end with a strong "Ful" sound to finish the word.

When speaking the word in a sentence, make sure to still emphasize the "W" sound. For example, if you were to say "She is a powerful woman," you would emphasize the "W" sound in the word "powerful."

Overall, it is important to remember to use intonation when pronouncing the word "powerful." Start with a soft "P" sound, emphasize the "W" sound, and end with a strong "Ful" sound. Doing this will help you to accurately pronounce the word "powerful."