Indicative
Present Indefinite
I strengthen hand
you strengthen hand
he/she/it strengthens hand
we strengthen hand
you strengthen hand
they strengthen hand
Present Continuous
I am strengthening hand
you are strengthening hand
he/she/it is strengthening hand
we are strengthening hand
you are strengthening hand
they are strengthening hand
Present Perfect
I have strengthened hand
you have strengthened hand
he/she/it has strengthened hand
we have strengthened hand
you have strengthened hand
they have strengthened hand
Present Perfect Continuous
I have been strengthening hand
you have been strengthening hand
he/she/it has been strengthening hand
we have been strengthening hand
you have been strengthening hand
they have been strengthening hand
Past Indefinite
I strengthened hand
you strengthened hand
he/she/it strengthened hand
we strengthened hand
you strengthened hand
they strengthened hand
Past Continuous
I was strengthening hand
you were strengthening hand
he/she/it was strengthening hand
we were strengthening hand
you were strengthening hand
they were strengthening hand
Past Perfect
I had strengthened hand
you had strengthened hand
he/she/it had strengthened hand
we had strengthened hand
you had strengthened hand
they had strengthened hand
Past Perfect Continuous
I had been strengthening hand
you had been strengthening hand
he/she/it had been strengthening hand
we had been strengthening hand
you had been strengthening hand
they had been strengthening hand
Future Indefinite
I will strengthen hand
you will strengthen hand
he/she/it will strengthen hand
we will strengthen hand
you will strengthen hand
they will strengthen hand
Future Continuous
I will be strengthening hand
you will be strengthening hand
he/she/it will be strengthening hand
we will be strengthening hand
you will be strengthening hand
they will be strengthening hand
Future Perfect
I will have strengthened hand
you will have strengthened hand
he/she/it will have strengthened hand
we will have strengthened hand
you will have strengthened hand
they will have strengthened hand
Future Perfect Continuous
I will have been strengthening hand
you will have been strengthening hand
he/she/it will have been strengthening hand
we will have been strengthening hand
you will have been strengthening hand
they will have been strengthening hand
Conditional
Conditional Present
I would strengthen hand
you would strengthen hand
he/she/it would strengthen hand
we would strengthen hand
you would strengthen hand
they would strengthen hand
Conditional Present Continuous
I would be strengthening hand
you would be strengthening hand
he/she/it would be strengthening hand
we would be strengthening hand
you would be strengthening hand
they would be strengthening hand
Conditional Perfect
I would have strengthened hand
you would have strengthened hand
he/she/it would have strengthened hand
we would have strengthened hand
you would have strengthened hand
they would have strengthened hand
Conditional Perfect Continuous
I would have been strengthening hand
you would have been strengthening hand
he/she/it would have been strengthening hand
we would have been strengthening hand
you would have been strengthening hand
they would have been strengthening hand