Do I qualify for an EB2 Green Card Application?
In order to qualify for the EB2 category for a Green Card, you must have an advanced degree [defined as a Masters degree or a Bachelors degree (4 year direct equivalent) followed by 5 years of progressive experience] and the position on which the application is based must require a Masters degree or a Bachelors degree followed by 5 years of progressive experience to qualify for the position.

I have a 3 year Bachelors degree from outside the US, can I qualify for an EB2 application if I have more than 5 years of experience?
No, in order to qualify for an EB2 application based on the Bachelors degree and 5 years of progressive experience requirement, the USCIS requires that the Bachelors degree be a direct equivalent to a US Bachelors degree, meaning the Bachelors degree must be a 4 year degree program. A 3 year Bachelors degree followed by 5 years of progressive experience will not suffice for EB2 under current USCIS policy.

Can I convert my EB3 application to EB2?
While there is technically no avenue to convert an EB3 application to EB2, it may be possible (assuming the position and beneficiary qualify for EB2) to re-file a new application in the EB2 category so that the GC is approved based on the EB2 category rather than the EB3 category.