Each tense has a progressive form, which is used to express continuing action or state of being.. Present progressive am, are, is talking Past progressive was, were talking Future progre
Trang 1Understanding verb tense
What are the verb tenses?
Present and present perfect Past and past perfect
Future and future perfect Consistency of tense
Modals
Review A
Review B
Trang 2What are the verb tenses?
Verbs do a lot of work in sentences They show
actions and states of being They even take
different forms to show time
flies
Trang 3Gwen plays guitar in a jazz band.
The tense of a verb indicates the time of the
action or state of being expressed by the verb
Perfect tenses indicate that something
happened or existed before a specific point in
time
Gwen will play in a concert tomorrow.
She will have played in ten concerts by April.
Trang 4The tenses of verbs are formed from the four
principal parts of verbs
Present Participle
Base Form
Past Past Participle
smile choose [is] smil [is] choos ing
smile d cho se
[have] smile d [have] cho sen
ingWhat are the verb tenses?
Trang 5Each tense has a progressive form, which is
used to express continuing action or state of being
What are the verb tenses?
Present progressive am, are, is talking Past progressive was, were talking Future progressive will (shall) be talking Present perfect
progressive has, have been talking
Past perfect progressive had been talking
Future perfect progressive will (shall) have been talking
Trang 6What are the verb tenses?
Present and present perfect
The present tense expresses an action or a
state of being that is occurring now, at the
present time
Today we honor our veterans.
Polly is marching in the parade.
(Progressive form)
Trang 7What are the verb tenses?
Present and present perfect
The present tense is also used in these ways:
In Grapes of Wrath, Steinbeck
shows us the extremes of life
during the depression.
to discuss a literary work
(literary present)
In 1927, Charles Lindbergh
flies nonstop across the
Atlantic
to make historical events
seem current (historical
present)
The sun rises in the east.
to express a general truth
We recycle our aluminum
cans
to show a customary or
habitual action or state of
being
We travel to Utah next month
to express future time
Trang 8What are the verb tenses?
Present and present perfect
The present perfect tense
• is usually formed using the helping verb have or has plus the past participle
• expresses an action or a state of being that
occurred at an indefinite time in the past
Mike has been in several parades.
He has played the drum in all of them.
Trang 9What are the verb tenses?
Present and present perfect
The present perfect tense is also used to
express an action or state of being that began in the past and continues into the present In this
case, perfect means complete.
Yoko has been taking flute lessons for
six years.
Mr Lee has taught music at our
school since 2004
(Progressive form)
Trang 10What are the verb tenses?
Past and past perfect
The past tense expresses an action or a state of being that occurred in the past but did not
continue into the present
They were swinging for a long time The two friends shared the large swing
(Progressive form)
Trang 11What are the verb tenses?
Past and past perfect
The past perfect tense
• is usually formed using had plus the past
participle
• expresses an action or a state of being that
ended before another past action or state of
being occurred
After Maria had gone home, Kim was bored.
She asked her dad about the time that he
had been a lifeguard at the beach
Trang 12What are the verb tenses?
Future and future perfect
The future tense
• is usually formed using will or shall plus the base
form
• expresses an action or a state of being that will occur
My family will ride the train to Chicago
We will be arriving at five o’clock
(Progressive form)
Trang 13What are the verb tenses?
Future and future perfect
The future perfect tense
• is usually formed using will have or shall have
plus the past participle
• expresses an action or a state of being that will end before another future action or state of
Trang 14[End of Section]
Change the tense of the verb in each sentence, as indicated
in parentheses.
1 I do not miss the bus (Change to future.)
2 Were they at the party? (Change to past perfect.)
3 By then, Keith had returned (Change to future perfect.)
4 The team will practice for an hour with no break (Change
to future perfect progressive.)
5 My sister dances well (Change to past.)
On Your Own
What are the verb tenses?
Trang 15Sara peeked over the fence and saw a cornfield
Sara peeks over the fence and sees a cornfield
Trang 16Consistency of tense
For events that occur at different times, use verbs
of different tenses to show the sequence of
events
The pitcher wished that he had practiced more
before the game
past tense past perfect tense
The action of wishing happened after the action of practicing was complete
Trang 17Consistency of tense
For events that occur at different times, use verbs
of different tenses to show the sequence of
events
Yesterday, Nina told us that her brother works
every week at the senior center
past tense
The action of telling occurred at a specific time in the past The action of working occurs now
present tense
Trang 18Consistency of tense
[End of Section]
On Your Own
Proofread the paragraph for unnecessary changes of verb
tense Change the verbs to make the tenses consistent
(1) I was in my room Saturday morning, planning to study for two hours (2) To my surprise, Nancy Chang drops by (3) She dashed into the house, runs up the stairs, and calls my name (4) What she wanted was a fishing companion (5) As I get my fishing gear together, I was so happy (6) On our way
to the lake, we notice some dark clouds (7) We wished we
checked the weather first
Trang 19A modal is a helping verb that is joined with a main verb or an infinitive to express an attitude toward the action or state of being of the main verb
Helping verbs used as modals
ought shall should will would
Trang 21The modal may is used to express permission or possibility
Yes, you may borrow my sweater
The modal might is used to express possibility
Permission
My clothes closet may be too full
Possibility
Trang 22The modal must is used most often to express a requirement Sometimes, must is used to express
an explanation
We must conserve energy in our homes
My brother must have left the lights on.
Requirement
Explanation
Trang 25The modal should is used to express a
recommendation, an obligation, or a possibility
Terrell should leave soon to catch the bus
All students should get to school
on time.
Recommendation
Obligation
Possibility Should you arrive late, please go
to the office first.
Trang 26The modal would is used to express the
conditional form of a verb In other words, it is
used to express a situation that is contrary to fact
If the weather had been more pleasant,
they would have gone on a picnic
Mrs Chang would be happy to prepare food if you bring the plates and forks
Trang 27Would can also be used to express future time in a
subordinate clause when the main verb in the
independent clause is in the past tense
They promised us that they would bring the music
past tense verb
Trang 28Would is sometimes used to express
Every day she would wake early and feed the hens
• an action that was repeated in the past
• an invitation or offer
• a polite request
Trang 29[End of Section]
Supply an appropriate modal for each sentence.
1 Jen _ have cleaned out the garage yesterday.
2 _ you please help Merrill with that large box?
3 You _ probably guess what I am about to say.
4 If the train had been faster, we _ have arrived
sooner.
5 I’m not certain, but I think Dad _ be cooking stew for dinner tonight.
On Your Own
Trang 303 The three sisters regularly meet for lunch (past)
4 Each student chooses a lab partner. (past perfect)
5 Wasps were entering the house through the torn screen
(present)
Trang 31Review B
[End of Section]
1 Colleen _ almost reach the light bulb (shows ability)
2 Jack _ repair the bicycle tomorrow (future tense)
3 Most of the girls _ already left (present perfect)
4 I _ attend the concert if only I had more time
Trang 32The End