No. You would say "Imagine you are joyful."
Yes, both "joyful time" and "joyous time" are grammatically correct and can be used interchangeably to convey a time filled with joy and happiness.
The correct adjective form is joyful.Example: The joyful attendees cheered the bride and groom.
i am joyful to have a brother named harlan.
I'm very joyful as it was the last day of school.
I'm so joyful that today's my Birth-Day
I glanced at the ice cream , joyful, as I gobbled it down :D
For example: "I love it!" she said joyfully. Or: She acted joyful, but inside she actually wasn't.
Lynn was joyful when she discovered that she had won free concert tickets.
No. More joyful would be correct.
The correct spelling is "joyful" with one L.
That is the correct spelling of the word "joyful" (happy).
That is the correct spelling of 'happy' (joyous, or pleased).