Russian To-Be Verbs, some conjugations, prepositions

Быть

To-Be (infinitive)

Есть

To-be, Present tense (all genders and numbers)

Был

I was, you were, he was

Была

I was, you were, she was

Было

It was

Были

We were, y’all were, they were

Буду

I will be

Будешь

You will be

Будет

He, she, it will be

Будем

We will be

Будете

Y’all will be

Будут

They will be

и

And (I am reading a book and thinking)

Но

But (contrasting, He reads German poorly, but he can speak it well)

а

But (adds detail, My name is not Maria, but Marina)

На

at, on

В

in

е

Ending for object of the prepositon

у

Exception for object of the preposition (in the word Лес_)

(put the correct preposition) Машинe

Ha

(put the correct preposition) Школе

B

(put the correct preposition) Море

Ha