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| I certify I certify |
| you certify you certify |
| he/she/it certifies he/she/it certifies |
| we certify we certify |
| they certify they certify |
| you certify you certify |
| I do not certify I don't certify |
| you do not certify you don't certify |
| he/she/it does not certify he/she/it doesn't certify |
| we do not certify we don't certify |
| they do not certify they don't certify |
| you do not certify you don't certify |
| I certified I certified |
| you certified you certified |
| he/she/it certified he/she/it certified |
| we certified we certified |
| they certified they certified |
| you certified you certified |
| I did not certify I didn't certify |
| you did not certify you didn't certify |
| he/she/it did not certify he/she/it didn't certify |
| we did not certify we didn't certify |
| they did not certify they didn't certify |
| you did not certify you didn't certify |
| I will certify I'll certify |
| you will certify you'll certify |
| he/she/it will certify he/she/it'll certify |
| we will certify we'll certify |
| they will certify they'll certify |
| you will certify you'll certify |
| I will not certify I won't certify |
| you will not certify you won't certify |
| he/she/it will not certify he/she/it won't certify |
| we will not certify we won't certify |
| they will not certify they won't certify |
| you will not certify you won't certify |
| I have certified I've certified |
| you have certified you've certified |
| he/she/it has certified he/she/it's certified |
| we have certified we've certified |
| they have certified they've certified |
| you have certified you've certified |
| I have not certified I haven't certified |
| you have not certified you haven't certified |
| he/she/it has not certified he/she/it hasn't certified |
| we have not certified we haven't certified |
| they have not certified they haven't certified |
| you have not certified you haven't certified |
| I had certified I'd certified |
| you had certified you'd certified |
| he/she/it had certified he/she/it'd certified |
| we had certified we'd certified |
| they had certified they'd certified |
| you had certified you'd certified |
| I had not certified I hadn't certified |
| you had not certified you hadn't certified |
| he/she/it had not certified he/she/it hadn't certified |
| we had not certified we hadn't certified |
| they had not certified they hadn't certified |
| you had not certified you hadn't certified |
| I will have certified I'll have certified |
| you will have certified you'll have certified |
| he/she/it will have certified he/she/it'll have certified |
| we will have certified we'll have certified |
| they will have certified they'll have certified |
| you will have certified you'll have certified |
| I will not have certified I won't have certified |
| you will not have certified you won't have certified |
| he/she/it will not have certified he/she/it won't have certified |
| we will not have certified we won't have certified |
| they will not have certified they won't have certified |
| you will not have certified you won't have certified |
| I am certifying I'm certifying |
| you are certifying you're certifying |
| he/she/it is certifying he/she/it's certifying |
| we are certifying we're certifying |
| they are certifying they're certifying |
| you are certifying you're certifying |
| I am not certifying I'm not certifying |
| you are not certifying you aren't certifying |
| he/she/it is not certifying he/she/it isn't certifying |
| we are not certifying we aren't certifying |
| they are not certifying they aren't certifying |
| you are not certifying you aren't certifying |
| I was certifying I was certifying |
| you were certifying you were certifying |
| he/she/it was certifying he/she/it was certifying |
| we were certifying we were certifying |
| they were certifying they were certifying |
| you were certifying you were certifying |
| I was not certifying I wasn't certifying |
| you were not certifying you weren't certifying |
| he/she/it was not certifying he/she/it wasn't certifying |
| we were not certifying we weren't certifying |
| they were not certifying they weren't certifying |
| you were not certifying you weren't certifying |
| I will be certifying I'll be certifying |
| you will be certifying you'll be certifying |
| he/she/it will be certifying he/she/it'll be certifying |
| we will be certifying we'll be certifying |
| they will be certifying they'll be certifying |
| you will be certifying you'll be certifying |
| I will not be certifying I won't be certifying |
| you will not be certifying you won't be certifying |
| he/she/it will not be certifying he/she/it won't be certifying |
| we will not be certifying we won't be certifying |
| they will not be certifying they won't be certifying |
| you will not be certifying you won't be certifying |
| I have been certifying I've been certifying |
| you have been certifying you've been certifying |
| he/she/it has been certifying he/she/it's been certifying |
| we have been certifying we've been certifying |
| they have been certifying they've been certifying |
| you have been certifying you've been certifying |
| I have not been certifying I haven't been certifying |
| you have not been certifying you haven't been certifying |
| he/she/it has not been certifying he/she/it hasn't been certifying |
| we have not been certifying we haven't been certifying |
| they have not been certifying they haven't been certifying |
| you have not been certifying you haven't been certifying |
| I had been certifying I'd been certifying |
| you had been certifying you'd been certifying |
| he/she/it had been certifying he/she/it'd been certifying |
| we had been certifying we'd been certifying |
| they had been certifying they'd been certifying |
| you had been certifying you'd been certifying |
| I had not been certifying I hadn't been certifying |
| you had not been certifying you hadn't been certifying |
| he/she/it had not been certifying he/she/it hadn't been certifying |
| we had not been certifying we hadn't been certifying |
| they had not been certifying they hadn't been certifying |
| you had not been certifying you hadn't been certifying |
| I will have been certifying I'll have been certifying |
| you will have been certifying you'll have been certifying |
| he/she/it will have been certifying he/she/it'll have been certifying |
| we will have been certifying we'll have been certifying |
| they will have been certifying they'll have been certifying |
| you will have been certifying you'll have been certifying |
| I will not have been certifying I won't have been certifying |
| you will not have been certifying you won't have been certifying |
| he/she/it will not have been certifying he/she/it won't have been certifying |
| we will not have been certifying we won't have been certifying |
| they will not have been certifying they won't have been certifying |
| you will not have been certifying you won't have been certifying |
| I would certify I would certify |
| you would certify you would certify |
| he/she/it would certify he/she/it would certify |
| we would certify we would certify |
| they would certify they would certify |
| you would certify you would certify |
| I would not certify I wouldn't certify |
| you would not certify you wouldn't certify |
| he/she/it would not certify he/she/it wouldn't certify |
| we would not certify we wouldn't certify |
| they would not certify they wouldn't certify |
| you would not certify you wouldn't certify |
| I would have certified I would've certified |
| you would have certified you would've certified |
| he/she/it would have certified he/she/it would've certified |
| we would have certified we would've certified |
| they would have certified they would've certified |
| you would have certified you would've certified |
| I would not have certified I wouldn't have certified |
| you would not have certified you wouldn't have certified |
| he/she/it would not have certified he/she/it wouldn't have certified |
| we would not have certified we wouldn't have certified |
| they would not have certified they wouldn't have certified |
| you would not have certified you wouldn't have certified |
| (you) certify (you) certify |
| (we) let's certify (we) let's certify |
| (you) certify (you) certify |
| (you) do not certify (you) don't certify |
| (we) let's not certify (we) let's not certify |
| (you) do not certify (you) don't certify |