We need a sincere bipartisan effort to clean up our own house.

"How can you say Mobutu is making a sincere effort to change things after what happened here?"

"There seems to be a sincere effort to make some progress."

To be sure, many American companies have made sincere efforts in recent months to improve their environmental record.

"It's certainly a sincere effort on the face of it."

"There has to be a sincere effort to address the concerns of everyday America."

But no one is making a sincere effort at peace.

He made a sincere effort to improve but finally had to be let go.

Even when foreign companies do make a sincere effort to break into Japan by looking for an acquisition, the results have been poor.

Everyone involved seemed to be united in a sincere effort to achieve dramatic effects.