The infinitive can appear by itself, or it can be part of a larger infinitive phrase.
Examples of infinitives:
To run
To walk
To cook
To understand
To make
The correct sentence is option two:
There have been many accidents during airshows; for example, last year the wind toppled a tent and equipment on top of bystanders.
The semicolon is a punctuation mark which indicates a pause, usually between two clauses that are not joined by a coordinating conjunction. Semicolons can also replace commas to separate elements in a list that already includes commas.
In the example sentence, the semicolon separates two clauses. Besides, a comma follows the introductory phrase "for example" because it introduces a clause.
They are telling julyet that it will never work out . P.S HOPES THIS HELPS