It is important to remember that scales are just the raw material for making music and are not an end in themselves. The purpose of learning all the forms and practicing sequence patterns is to become comfortable with them in order to make melodic statements. Once you are confident with the scale forms, you should practice improvising within each one as part of your daily practice. Here is an example of a line derived from the A form of the C major scale.
If you are having trouble playing lines within the different forms, try using some set rhythms until you are comfortable using all the notes of each form. This example uses the E form of C major.