As it's written, no, it is not. It lacks a subject. The only possible subjects that correspond to the verb is I, we, you,and they. The example is one pronoun short of being a sentence.
This aeroplane has crossed the Atlantic Ocean many times.
34
1 time
The doctor warned him that too many hamburgers would lead to a heart attack.
I had lots of grime because I fell on our hiking trip in the forest many times.
There is not just one good sentence for "there," there are many.
There is no good sentence using the word creditor, unless that is how you make your living: That creditor keeps calling, no matter how many times I tell them that they have the wrong John Smith.
3 times!
0 times
Paul Revere warned many cities but the first one he warned was Concord
There are many good shops in our locality.
As many times as you want, but I don't suggest it, and technically a sentence can go on for a long time so if you're asking how many times can it be said properly then there is no correct answer to our standards