Conjugations of the English verb alter can be found below. Click the translation icon 
to translate each conjugation. Improve your vocabulary and boost your learning by taking the above online verb test.
to translate each conjugation. Improve your vocabulary and boost your learning by taking the above online verb test.
Indicative
Present
| I | alter |
| you | alter |
| she | alters |
| we | alter |
| they | alter |
Perfect
| I | have | altered |
| you | have | altered |
| she | has | altered |
| we | have | altered |
| they | have | altered |
Past
| I | altered |
| you | altered |
| she | altered |
| we | altered |
| they | altered |
Pluperfect
| I | had | altered |
| you | had | altered |
| she | had | altered |
| we | had | altered |
| they | had | altered |
Future
| I | will | alter |
| you | will | alter |
| she | will | alter |
| we | will | alter |
| they | will | alter |
Future perfect
| I | will | have | altered |
| you | will | have | altered |
| she | will | have | altered |
| we | will | have | altered |
| they | will | have | altered |
Imperative
Present
| alter! | |
| let's | alter! |
Conditional
Present
| I | would | alter |
| you | would | alter |
| she | would | alter |
| we | would | alter |
| they | would | alter |
Perfect
| I | would | have | altered |
| you | would | have | altered |
| she | would | have | altered |
| we | would | have | altered |
| they | would | have | altered |
Conjunctive
Present
| I | alter |
| you | alter |
| she | alter |
| we | alter |
| they | alter |
Perfect
| I | have | altered |
| you | have | altered |
| she | have | altered |
| we | have | altered |
| they | have | altered |
Past
| I | altered |
| you | altered |
| she | altered |
| we | altered |
| they | altered |
Pluperfect
| I | had | altered |
| you | had | altered |
| she | had | altered |
| we | had | altered |
| they | had | altered |
Participle
Gerund
| altering |
Past
| altered |