The signal for “is” in American Signal Language (ASL) is made by inserting the dominant hand (often the correct hand) in a “C” form, with the thumb prolonged and the fingertips touching the palm. The hand is then moved ahead and down in a small arc, ending with the hand in a fist form.
This signal is used to point the current tense of the verb “to be”. For instance, to say “I’m completely satisfied” in ASL, you’ll signal “I” (by pointing to your self), adopted by the signal for “is”, after which the signal for “completely satisfied”.