Indicative
Present Indefinite
I slacken
you slacken
he/she/it slackens
we slacken
you slacken
they slacken
Present Continuous
I am slackening
you are slackening
he/she/it is slackening
we are slackening
you are slackening
they are slackening
Present Perfect
I have slackened
you have slackened
he/she/it has slackened
we have slackened
you have slackened
they have slackened
Present Perfect Continuous
I have been slackening
you have been slackening
he/she/it has been slackening
we have been slackening
you have been slackening
they have been slackening
Past Indefinite
I slackened
you slackened
he/she/it slackened
we slackened
you slackened
they slackened
Past Continuous
I was slackening
you were slackening
he/she/it was slackening
we were slackening
you were slackening
they were slackening
Past Perfect
I had slackened
you had slackened
he/she/it had slackened
we had slackened
you had slackened
they had slackened
Past Perfect Continuous
I had been slackening
you had been slackening
he/she/it had been slackening
we had been slackening
you had been slackening
they had been slackening
Future Indefinite
I will slacken
you will slacken
he/she/it will slacken
we will slacken
you will slacken
they will slacken
Future Continuous
I will be slackening
you will be slackening
he/she/it will be slackening
we will be slackening
you will be slackening
they will be slackening
Future Perfect
I will have slackened
you will have slackened
he/she/it will have slackened
we will have slackened
you will have slackened
they will have slackened
Future Perfect Continuous
I will have been slackening
you will have been slackening
he/she/it will have been slackening
we will have been slackening
you will have been slackening
they will have been slackening
Conditional
Conditional Present
I would slacken
you would slacken
he/she/it would slacken
we would slacken
you would slacken
they would slacken
Conditional Present Continuous
I would be slackening
you would be slackening
he/she/it would be slackening
we would be slackening
you would be slackening
they would be slackening
Conditional Perfect
I would have slackened
you would have slackened
he/she/it would have slackened
we would have slackened
you would have slackened
they would have slackened
Conditional Perfect Continuous
I would have been slackening
you would have been slackening
he/she/it would have been slackening
we would have been slackening
you would have been slackening
they would have been slackening