Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_2784232_1 (arabic_form VARCHAR, morphological_category VARCHAR)
### Question:
How many Arabic forms are there for the 1st. plur. perfect category?
### Answer:
SELECT COUNT(arabic_form) FROM table_2784232_1 WHERE morphological_category = "1st. plur. perfect"