Chapter 4, Section 4
Every verb has 4 forms called its principal parts:
 the present
 the present participle
 the past
 the past participle




We live in a mobile society. (PRESENT)
People are traveling more all the time. (PRESENT PARTICIPLE)
Automobiles lent travelers more freedom. (PAST)
Drivers have enjoyed this freedom for years. (PAST PARTICIPLE)
The 4 Principal Parts of a Verb
Present
Present Participle
Past
Past Participle
move
(is) moving
moved
(has) moved
travel
(is) traveling
traveled
(has) traveled
NOTICE THAT HELPING
VERBS ARE USED WITH
THE PRESENT PARTICIPLE
AND THE PAST
PARTICIPLE
Regular Verbs – a verb whose past and past
participle are formed by adding –ed or –d to the
present.
 The present participle is formed by adding –ing to the
present.
Present
Present Participle
Past
Past Participle
walk
(is) walk + ing
walk + ed
(has) walk + ed