Infinitive comes in two types: infinitive without to and to-infinitive. Infinitive without to or base infinitive is the base form of a verb. The to-infinitive consists of the word to and the base form of a verb.
When an apostrophe is not used with the word its, it indicates possession. When an apostrophe is used with the word its (it’s), it indicates contraction of it is. Inserting an apostrophe so that it becomes it's when you mean possession makes the sentence wrong grammatically.
Without an apostrophe, the word its indicates belonging to a noun that has already been mentioned.
With an apostrophe, the word it’s indicates a contraction of it is.