The dog barked loudly at the mail carrier.
barked
The baby cried during the movie.
action
She walked to school yesterday.
past
Swimming strengthens your muscles.
Gerund- subject
Close the door before you leave.
active, imperative
Maria is practicing for the school play.
is practicing
The soup smells delicious.
linking
They are studying for the science test.
present progressive
She hopes to win the championship.
infinitive, direct object
Did the students finish the assignment on time?
active, interrogative
The students have been studying for the test all week.
have been studying
The athletes have finished their warm-ups.
helping
He has finished his project.
present perfect
The students, exhausted after the exam, left quietly.
participle, describes "students"
The final exam was graded by the principal.
passive, indicative
James finished his homework, and he is watching television now.
finished, is watching
After the long rehearsal, the actors were exhausted.
linking
By the time we arrived, the movie had already started.
past perfect
The teacher asked the students to revise their essays.
infinitive, direct object
If it rains tomorrow, the game will be canceled.
passive, conditional
The storm had been approaching quickly, but the sailors did not realize the danger until it was too late.
has been approaching, did realize, was
The crowd did cheer when the final shot went in.
helping
By next Friday, we will have been practicing for three weeks.
future perfect progressive
Determined to succeed, Marcus stayed up late studying for the final exam.
participle (determined) describes "Marcus"
infinitive (to succeed) describes "Determined"
participle (studying) describes "Marcus"
If I were the coach, I would choose a different strategy.
active, subjunctive