strengthened
past tense of strengthen is strengthened.
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Strengthen Past Tense
Strengthen verb forms
| Infinitive | Present Participle | Past Tense | Past Participle |
|---|---|---|---|
| strengthen | strengthening | strengthened | strengthened |
Conjugation of Strengthen
| Simple / Indefinite Present Tense |
|---|
| He/She/It strengthens . |
| I strengthen. |
| You/We/They strengthen. |
| Present Continuous Tense |
|---|
| He/She/It is strengthening. |
| I am strengthening. |
| You/We/They are strengthening. |
| Present Perfect Tense |
|---|
| He/She/It has strengthened. |
| I have strengthened. |
| You/We/They have strengthened. |
| Present Perfect Continuous Tense |
|---|
| He/She/It has been strengthening. |
| I have been strengthening. |
| You/We/They have been strengthening. |
| Simple Past Tense |
|---|
| He/She/It strengthened. |
| I strengthened. |
| You/We/They strengthened. |
| Past Continuous Tense |
|---|
| He/She/It was strengthening. |
| I was strengthening. |
| You/We/They were strengthening. |
| Past Perfect Tense |
|---|
| He/She/It had strengthened. |
| I had strengthened. |
| You/We/They had strengthened. |
| Past Perfect Continuous Tense |
|---|
| He/She/It had been strengthening. |
| I had been strengthening. |
| You/We/They had been strengthening. |
| Simple Future Tense |
|---|
| He/She/It will/shall strengthen. |
| I will/shall strengthen. |
| You/We/They will/shall strengthen. |
| Future Continuous Tense |
|---|
| He/She/It will/shall be strengthening. |
| I will/shall be strengthening. |
| You/We/They will/shall be strengthening. |
| Future Perfect Tense |
|---|
| He/She/It will/shall have strengthened. |
| I will/shall have strengthened. |
| You/We/They will/shall have strengthened. |
| Future Perfect Continuous Tense |
|---|
| He/She/It will/shall have been strengthening. |
| I will/shall have been strengthening. |
| You/We/They will/shall have been strengthening. |
Also check English Conjugation for: