If you mean how many syllables does injection have, there are 3.
The word injection has three syllables.
There are 3 syllables in injection:in/jec/tion
There are 3 syllables in injection. In-jec-tion. There are 3 syllables in complicate. Com-pli-cate. There are 4 syllables in insensitive. In-sen-si-tive.
3 in-jec-tion
There are 3 syllables in symphony:sym/pho/ny
there are 2 syllables in stomach. To see why, search 'How many syllables in attack?'
4 syllables am- phi- bi- an
Awake has two syllables. The syllables are a-wake.
There are two syllables in "wistfully."
There are 14 syllables.
Happened has two syllables. The syllables are hap-pened.
There are two syllables.