The Past Tense and Past Participle of Know with Conjugation

Past Tense and Past Participle of Know! The verb know is an irregular verb. Irregular verbs are verbs that do not form the simple past tense and the past participle by adding -d or -ed to the root form. The past tense of know is knew. We use the past form of know with all persons (I, we, you, he, she, it, and they)
Meaning: To be familiar with or to have an understanding of something
Infinitive: to know
Perfect Infinitive: to have known
Present Participle: knowing
Past Participle: known

Must Read: Past Tense of Get

Past Tense and Past Participle of Know

Know Past Tense and Past Participle Conjugation Examples

To Know Conjugation Active Voice

Simple Present Tense of Know
I/We know
He/She/It knows
You/They know
Simple Past Tense
I/We knew
He/She/It knew
You/They knew
Simple Future Tense of Know
I/We will know
He/She/It will know
You/They will know
Present Perfect Tense
I/We have known
He/She/It has known
You/They have known
Past Perfect Tense of Know
I/We had known
You had known
He/She/It had known
You/They had known
Future Perfect Tense
I/We will have known
He/She/It will have known
You/They will have known
Note: The verb know is never used in continuous tenses.

To Know Conjugation Passive Voice

Simple Present
I/We am known
He/She/It is known
You/They are known
Simple Past
I/We was known
He/She/It was known
You/They were known
Simple Future
I/We shall be known
He/She/It will be known
You/They will be known
Present Continuous
I/We am being known
He/She/it is being known
You/They are being known
Past Continuous
I/We was being known
He/She/it was being known
You/They were being known
Future Continuous
I/We will be being known
He/She/It will be being known
You/They will be being known
Present Perfect
I/We have been known
He/She/It has been known
You/They have been known
Past Perfect
I/We had been known
He/She/It had been known
You/They had been known
Future Perfect
I/We shall have been known
He/She/It will have been known
You/They will have been known

Conjugate to Know Subjunctive Mood

If + I/we know
If you know
If he/she/it know
If they know
If I knew
If we knew
If you knew
If he/she/it knew
If they knew
If I should know
If we should know
If you should know
If he (she, it) should know
If they should know

Conjugate to Know Subjunctive Mood Passive Voice

If I/we be known
If you be known
If he/she/it be known
If they be known
If I were known
If we were known
If you were known
If he/she/it were known
If they were known
If I should be known
If we should be known
If you should be known
If he/she/it should be known
If they should be known

Sentence Examples
I knew him when he was just a little boy. (Past Simple)
My dad and your brother have known each other for many years. (Present Perfect)
Do you think she knows? (Present Simple Third-Person singular)
They have known about his illness for several days. (Present Perfect)
Do you know about his refusal to sell the car? (Simple Present)

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