Tenses for First Semester

INTERCHANGE OF VERBS IN TENSES

Tenses	Positive verb	Negative verb
Simple present tense	write / writes	do / does not write
Present continuous tense	am / is / are writing	am / is / are not writing
Present perfect tense	have / has written	have / has not written
Present perfect continuous tense	have / has been writing	Have / has not been writing
Simple past tense	wrote	did not write
Past continuous tense	was / were writing	was / were not writing
Past perfect tense	had written	had not written
Past perfect continuous tense	had been writing	had not been writing
Simple future tense	will / shall write	will / shall not write
Future continuous tense	will / shall be writing	will / shall not be writing
Future perfect tense	will / shall have written	will / shall have not written
Future perfect continuous tense	will / shall have been writing	Will / shall have not been writing

SUBJECT AND VERB AGREEMENT (present tense)

First person singular	present	continuous	perfect	perfect continuous
I	write	am writing	have written	have been writing
First person plural
We	write	are writing	have written	have been writing
Second person
You	write	are writing	have written	have been writing
Third person singular
He, she, it, any name of a person	writes	is writing	has written	has been writing
Third person plural
They	write	are writing	have written	have been writing

SUBJECT AND VERB AGREEMENT (past tense)

First person singular	past	continuous	perfect	Perfect continuous
I	wrote	was writing	had written	had been writing
First person plural
We	wrote	were writing	had written	had been writing
Second person
You	wrote	were writing	have written	had been writing
Third person singular
He, she, it, any name of a person	wrote	was writing	had written	had been writing
Third person plural
They	wrote	were writing	had written	had been writing

SUBJECT AND VERB AGREEMENT (future tense)

First person singular	past	continuous	perfect	Perfect continuous
I	shall / will write	will / shall be writing	will / shall have written	will / shall have been writing
First person plural
We	shall / will write	will / shall writing	will / shall have written	will / shall have been writing
Second person
You	will write	will be writing	will have written	will have been writing
Third person singular
He, she, it, any name of a person	will write	will be writing	will have written	will have been writing
Third person plural
They	will write	will be writing	will have written	will have have been writing

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