I was just listening and wishing that I could sing, too.
Ever since Peter Rabbit was a little chap and had first ran away from home, he had known Old Mr. Toad, and never once had Peter suspected that he could sing.
So there are times when Peter wishes he could sing.
I never felt such joy that I could sing; for I knew the words went to the furthest corner and distinctly, though I was not raising my voice beyond a very soft pitch.
I had not then mastered the French pronunciation so that I could sing acceptably at the Paris Grand Opera, the scene of my later triumphs.
They worked me for over ten months on scales and sustained tones until the break that came at E flat above the Bass Clef was welded from the lower tones to the upper tones so that I could sing up or down with no ugly break audible.
I had been singing in Berlin, when the impresario of the Royal Opera approached me and asked me if I could sing Aida on a following Monday.
I would I were a weaver; I could sing psalms or any thing.
And I could sing, would weeping do me good, And never borrow any tear of thee.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "could sing" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.