Sentence examples for problems is certainly from inspiring English sources

"Asking communities for help with solving problems is certainly going to help businesses," he said.

The thought, for instance, that either a giant oil company or the Pentagon will solve our problems is certainly a repetitive one.

Its problems were certainly better anticipated.

But specific problems were certainly symptoms of a wider incompatibility.

Argentina's problems are certainly worsening.

It seems these problems are certainly not considered by any means insurmountable, though.

The time-series estimation and prediction problems are certainly much more difficult when the process of interest is not directly observed, as is the case in this paper.

There are problems and there are problems, and some problems are certainly not as important as other problems.

The economy is struggling and the government shutdowns and other problems are certainly not helping the average citizen.

Clinton, Dec. 5, 2007: Now these economic problems are certainly not all Wall Street's fault – not by a long shot.

Maybe I try a little harder, and maybe it seems that I try too hard". Carmelo Martinez's defensive (or offensive) problems are certainly not caused by a shortage of either hard work or effort.