Complete the sentence.

the is the essential noun, pronoun, or group of words acting as a noun that cannot be left out of a sentence.

simple predicate

complete subject

complete predicate

simple subject

He is very uncountable

  i think you forgot to put the options but if your reffering to this question then your answer will be "b"  a. add "to" to the base form to create an adjective.b. when the subject of a sentence is singular, add "–s" to the base form.c. add "–ed" to irregular base forms to form the past participle.d. do not use a base form with plural subjects