Verbo regular: strengthen - strengthened - strengthened
Indicativo
Presente
I strengthen you strengthen she strengthens we strengthen you strengthen they strengthen
Presente continuo
I am strengthening you are strengthening she is strengthening we are strengthening you are strengthening they are strengthening
Pretérito
I strengthened you strengthened she strengthened we strengthened you strengthened they strengthened
Pretérito continuo
I was strengthening you were strengthening she was strengthening we were strengthening you were strengthening they were strengthening
Presente perfecto
I have strengthened you have strengthened she has strengthened we have strengthened you have strengthened they have strengthened
Presente perfecto continuo
I have been strengthening you have been strengthening she has been strengthening we have been strengthening you have been strengthening they have been strengthening
Pluscuamperfecto
I had strengthened you had strengthened she had strengthened we had strengthened you had strengthened they had strengthened
Pluscuamperfecto continuo
I had been strengthening you had been strengthening she had been strengthening we had been strengthening you had been strengthening they had been strengthening
Futuro simple
I will strengthen you will strengthen she will strengthen we will strengthen you will strengthen they will strengthen
Futuro continuo
I will be strengthening you will be strengthening she will be strengthening we will be strengthening you will be strengthening they will be strengthening
Futuro perfecto
I will have strengthened you will have strengthened she will have strengthened we will have strengthened you will have strengthened they will have strengthened
Futuro perfecto contínuo
I will have been strengthening you will have been strengthening she will have been strengthening we will have been strengthening you will have been strengthening they will have been strengthening
Condicional
Presente
I would strengthen you would strengthen she would strengthen we would strengthen you would strengthen they would strengthen
Presente continuo
I would be strengthening you would be strengthening she would be strengthening we would be strengthening you would be strengthening they would be strengthening
Passado
I would have strengthened you would have strengthened she would have strengthened we would have strengthened you would have strengthened they would have strengthened
Passado continuo
I would have been strengthening you would have been strengthening she would have been strengthening we would have been strengthening you would have been strengthening they would have been strengthening