15 Dec Review on English: Subject-Verb Agreement and Tenses
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SUBJECT AND VERB AGREEMENT
These nouns can either take a singular or plural verb depending on how they are used in a sentence. On the other hand, if a collective noun is perceived as one entity, then it would take a singular verb. On the other hand, if a collective noun is perceived as individuals the group, it will take a plural verb.
Examples: Our debate team has won the competition
Our debate team have won all their battles
Noun ending in –s-and –ics
Nouns ending in s and ics are always paired with verbs in the singular form
Examples: Mathematics is my favorite subject
Measles is a dangerous disease
Nouns in sets of twos.
Nouns of this nature take a singular verb if the word” pair” is present. If not. They take a plural verb.
Examples: A pair of scissors in on the table
The scissors are on the table
“A number” and “The number”
Sentence beginning with the phrase “ a number” always take a plural verb, while sentences that begin with “ the number” take a singular verb”
Examples: A number of students have been expelled
The number of students being expelled is rising.
Fraction and Percent
Nouns in percent and in fraction take a singular verb if paired with a non-count noun, and vice versa.
Examples: 50% of the Earth’s water is still safe for drinking
One-third of the students were expelled
Compound subjects joined by a conjunction take plural verbs.
Examples: Paul and Robin are brothers
Neither…nor and Either…or
The verb must agree with closet noun.
Example: Neither John nor his brothers are going to America
As well and Together with
The verb must agree with the first noun (subject).
Example: the president, together with his advisers, is leaving tomorrow
Simple Present Tense
Verbs in the present tense express habitual or factual actions.
Examples: She sings
The sun shines
Simple Past Tense
Verbs in the past tense express actions that happened in the past.
Example: She sang yesterday
Simple Future Tense
Verbs in the future tense express actions that will happen in the future.
Example: She will sing.
Present Progressive Tense
Verbs in the present progressive tense, express actions that are happening at the moment.
Example: She is singing.
Past Progressive Tense
This expresses a continuing action that started and ended in the past.
Example: She was singing all afternoon yesterday.
Future Progressive Tense
This expresses a continuing action that will happen in the future.
Example: She will be singing in the competition.
Present Perfect Tense
This expresses an action that started in the past, but is still happening at present
Example: I have sung a song.
Past Perfect Tense
This expresses two past actions, in which one happened before the other.
Example: she had sung before she danced.
Future Perfect Tense
This expresses two future actions, in which one will happen before the other.
Example: She will have sung before she dances.
Present Perfect Progressive Tense
This expresses an action that started in the past and still happening at present and will most likely continue to happen in the future.
Example: She has been singing since this morning.
Past Perfect Progressive Tense
This expresses two past actions, where the first one was still happening when the second one transpired.
Example: She had been singing before the bomb exploded.
Future Perfect Progressive Tense
This expresses two future actions, where the first action is still happening when the second one is transpires.
Example: She will have been singing before the bomb explodes.
|Future||I will dance|
|Present Progressive||I am dancing|
|Past Progressive||I was dancing all afternoon yesterday|
|Future Progressive||I will be dancing|
|Present Perfect||I have danced|
|Past Perfect||I had danced before I sang|
|Future Perfect||I will have danced before I sing|
|Present Perfect Progressive||I have been dancing since then|
|Past perfect Progressive||I had been dancing when the bomb exploded|
|Future Perfect Progressive||I will have been when the party ends|