Sentence examples for cannot say for certain from inspiring English sources

I cannot say for certain.

But you cannot say for certain.

I am sorry I cannot say for certain.

They still cannot say for certain that the three are interstellar particles.

He cannot say for certain that no Iraqis died from were killed by his bullets.

So we cannot say for certain which individual wrote a given passage.

I cannot say for certain why New England is so far to the left.

I cannot say for certain, as I have yet to taste it.

I cannot say for certain when it was given for the first time as I was not present in person.

From their data, the researchers cannot say for certain what this parameter is, although it may be related to mass.

The city cannot even say for certain how many of the permits are in use, because they have been given out by multiple agencies with no central accounting.