A B C D E F G H I J K L M N O P Q R S T U V W X Y Z , Overview
| German | konzentrieren, sich konzentrieren |
| French | concentrer, se concentrer |
| ACTIVE | Passive | Intro | AFFIRMATION | Negation |
| FULL FORM | Contraction | Answer | QUESTION |
| indicative present | indicative past tense |
| do I concentrate? | did I concentrate? |
| do you concentrate? | did you concentrate? |
| does he/she/it concentrate? | did he/she/it concentrate? |
| do we concentrate? | did we concentrate? |
| do you concentrate? | did you concentrate? |
| do they concentrate? | did they concentrate? |
| indicative present continuous | indicative past tense continuous |
| am I concentrating? | was I concentrating? |
| are you concentrating? | were you concentrating? |
| is he/she/it concentrating? | was he/she/it concentrating? |
| are we concentrating? | were we concentrating? |
| are you concentrating? | were you concentrating? |
| are they concentrating? | were they concentrating? |
| indicative present perfect | indicatif past perfect |
| have I concentrated? | had I concentrated? |
| have you concentrated? | had you concentrated? |
| has he/she/it concentrated? | had he/she/it concentrated? |
| have we concentrated? | had we concentrated? |
| have you concentrated? | had you concentrated? |
| have they concentrated? | had they concentrated? |
| indicative present perfect cont. | indicative past perfect cont. |
| have I been concentrating? | had I been concentrating? |
| have you been concentrating? | had you been concentrating? |
| has he/she/it been concentrating? | had he/she/it been concentrating? |
| have we been concentrating? | had we been concentrating? |
| have you been concentrating? | had you been concentrating? |
| have they been concentrating? | had they been concentrating? |
| indicative future | indicative future perfect |
| shall/will I concentrate? | shall/will I have concentrated? |
| will you concentrate? | will you have concentrated? |
| will he/she/it concentrate? | will he/she/it have concentrated? |
| shall/will we concentrate? | shall/will we have concentrated? |
| will you concentrate? | will you have concentrated? |
| will they concentrate? | will they have concentrated? |
| indicative future continuous | indicative future perfect cont. |
| shall/will I be concentrating? | shall/will I have been concentrating? |
| will you be concentrating? | will you have been concentrating? |
| will he/she/it be concentrating? | will he/she/it have been concentrating? |
| shall/will we be concentrating? | shall/will we have been concentrating? |
| will you be concentrating? | will you have been concentrating? |
| will they be concentrating? | will they have been concentrating? |
| conditional present | conditional perfect |
| should/would I concentrate? | should/would I have concentrated? |
| would you concentrate? | would you have concentrated? |
| would he/she/it concentrate? | would he/she/it have concentrated? |
| should/would we concentrate? | should/would we have concentrated? |
| would you concentrate? | would you have concentrated? |
| would they concentrate? | would they have concentrated? |
| conditional present cont. | conditional perfect cont. |
| should/would I be concentrating? | should/would I have been concentrating? |
| would you be concentrating? | would you have been concentrating? |
| would he/she/it be concentrating? | would he/she/it have been concentrating? |
| should/would we be concentrating? | should/would we have been concentrating? |
| would you be concentrating? | would you have been concentrating? |
| would they be concentrating? | would they have been concentrating? |
A quick overview of the irregular English verbs you get in the table.
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