Complain has two syllables. It is not clear what the question is, but one possibility is that it is asking whether the stress is on the first or second syllable. The answer to that is that the stress is on the second syllable.
"Complain" is stressed on the second syllable - "com-PLAIN."
No, complain is stressed on the second syllable.
No, the second syllable of "complain" is stressed: com-PLAIN.
The second.
The second.
Yes.
The syllable "com" is stressed in the word "complain."
The word balance is a unstressed first syllable.
second syllable
second
Second syllable.
second accented syllable