するかもしれない
That may be the case.
可能性もある
There's also the possibility
可能性はある
within the realm of possibility
to be able to be dependent on something
できればよい
to be able to have an involvement with something
There is the possibility that it was deliberate.
A tumour forms [appears, makes its appearance] on some part of the body.
He seems to be something of a scholar.
to be able to wrench off something from someone