What did that boy asked him and John?

is that a sentence

also how many syllables in grandmother

Yes. It's a sentence.

The syllables in grandmother:

grand moth er

okay

thanks

so it is 3 syllables in grandmother

Yes -- three syllables in grandmother.

In your first sentence, be sure to use "ask" with the helping verb "did" -- not "asked."

To determine what the boy asked him and John, you would need to provide more context or specific information about the conversation or situation. Without that information, it is impossible to know what the boy asked.

Regarding your second question, "Is that a sentence?" - yes, your question is a grammatically correct sentence.

To count the number of syllables in a word, you can follow these steps:

1. Identify the vowels in the word. Vowels consist of the letters A, E, I, O, U, and sometimes Y.
2. Separate the word into individual syllables based on the vowels.
3. Count the number of separate vowel sounds or vowel groups. Each vowel sound or group usually represents one syllable.
4. Remember that single consonants between vowels usually belong to the following syllable.

For example, the word "grandmother" has two vowel sounds ("a" and "o"), and the separate syllables are "grand" and "moth-er." Therefore, "grandmother" has three syllables.