What is written in bold is the subject, <em>what is written in italic is the predicate </em><u><em>and what is underlined is the object. </em></u>
Maria <em>is playing with her</em> <u>dolls</u>
He <em>is repairing his </em><u>laptop</u>
Ann <em>is driving her</em><u> car</u>
Arnold <em>is jumping the </em><u>fence</u>
Dad <em>is writing a</em><u> letter</u>.
The Subject in a sentence is the noun or the pronoun which performs and action, the action performed is the predicate in which we find the verb. The object is a noun or a pronoun which is acted upon by the subject.