About questionnaire forms

i wish to create a questionnaire forms for my research data collection.

Hi @LadyFra and welcome to the community!

This is a help article of Quickstart guide (Quickstart guide — KoboToolbox documentation), you can start from here, learn about how to create forms using form builder (Getting started with the Formbuilder — KoboToolbox documentation)

Also if you want to learn things more indepth, you can use KoboToolbox Academy:(https://academy.kobotoolbox.org/)

Or you can create a job board post to hire someone professionally to create your questionnaire: (Job Board - KoboToolbox Community Forum)