[Grammar] How to use "previous" in plural form?

[SunMoon]

I checked that previous has not plural form so I can use it in both cases, singular and plural forms, cannot I?

For example: I gained BPR skills in all my previous experiences.

I think that even experience which has not plural form, in this case I hae to use it putting s at the end of the word.

Is it correct?

[Soup]

Previous is an adjective, not a noun, so it doesn't have a singular or plural form. As for the noun experience, it can be count or non-count:

Ex: I had many horrifying experiences as a pilot.
Ex: I need work experience in that field to get that job.