How to identify Submit button in webpage?

Hi Team,

I have scenario like this: I have submit button in a webpage and I need to check whether submit button present or not? If it presents i need to click on it else I had to go to next step.

My trails:
I spied the submit button and tried to use "Checked" attribute . But Before getting that attribute I have to check whether submit button is there or not.? how to do it?
If error throws i can say that there is not submit button and I can use recover to go for other steps? But is this right procedure ?
 
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