You can check them all in this page about :TweenPosition. This is an example of the arguments you could use for your tween.
:TweenPosition(UDim2.new(0.05, 0,0.5, -90), Enum.EasingDirection.Out, Enum.EasingStyle.Cubic, .25, true)
If you read the page you will see that you can also call a callback function, but forget about that since you only need the arguments I have put above.