Таблицы спряжения английского глагола

strengthen - укреплять; усиливать

Simple forms

Indicative
Present
I strengthen
you strengthen
he/she/it strengthens
we strengthen
you strengthen
they strengthen
 Preterite
I strengthened
you strengthened
he/she/it strengthened
we strengthened
you strengthened
they strengthened

Infinitive
to strengthen

Imperative
strengthen
let's strengthen
strengthen

Participle
Present
strengthening
 Past
strengthened
In English, the conjugated forms are the same for the following persons: you, we and they.

Compound forms

Past participle
having strengthened
In English, the conjugated forms are the same for the following persons: you, we and they.

Indicative
Present continuous
I am strengthening
you are strengthening
he/she/it is strengthening
we are strengthening
you are strengthening
they are strengthening
 Present perfect
I have strengthened
you have strengthened
he/she/it has strengthened
we have strengthened
you have strengthened
they have strengthened
 Future
I will strengthen
you will strengthen
he/she/it will strengthen
we will strengthen
you will strengthen
they will strengthen
 Future perfect
I will have strengthened
you will have strengthened
he/she/it will have strengthened
we will have strengthened
you will have strengthened
they will have strengthened

Past continuous
I was strengthening
you were strengthening
he/she/it was strengthening
we were strengthening
you were strengthening
they were strengthening
Past perfect
I had strengthened
you had strengthened
he/she/it had strengthened
we had strengthened
you had strengthened
they had strengthened
Future continuous
I will be strengthening
you will be strengthening
he/she/it will be strengthening
we will be strengthening
you will be strengthening
they will be strengthening
Present perfect continuous
I have been strengthening
you have been strengthening
he/she/it has been strengthening
we have been strengthening
you have been strengthening
they have been strengthening

Past perfect continuous
I had been strengthening
you had been strengthening
he/she/it had been strengthening
we had been strengthening
you had been strengthening
they had been strengthening
Future perfect continuous
I will have been strengthening
you will have been strengthening
he/she/it will have been strengthening
we will have been strengthening
you will have been strengthening
they will have been strengthening