| Simple | Continuous | Perfect | Perfect Continuous | |
| Present | Kate writes many letters every day. Каждый день Катя пишет много писем. |
Kate is writing letters now. Катя сейчас пишет письма. |
Kate has already written many letters. Катя уже написала много писем. |
Kate has been writing letters for 3 hours already. Катя уже З часа пишет письма. |
| Past | Kate wrote many letters last Sunday. В прошлое воскресенье Катя написала много писем. |
Kate was writing the letters the whole evening. Катя вчера весь вечер писала письма. |
Kate had written many letters before mother came. Катя написала много писем до того, как пришла мама. |
Kate had been writing the letters for 3 hours before mother came. До того как пришла мама, Катя 3 часа писала письма. |
| Future | Kate will write many letters tomorrow. Завтра Катя напишет много писем. |
Kate will be writing the letters from 5 till 7. Катя будет писать письма с 5 до 7. |
Kate will have written many letters before mother come. Катя напишет много писем до того, как придет мама. |
Kate will have been writing the letters for 3 hours before mother come. Катя будет писать эти письма 3 часа до того, как придет мама. |
| Future in the Past | She promised that she would write many letters. Она пообещала, что она напишет много писем. |
She promised that she would be writing these letters from 5 till 7. Она пообещала, что она будет писать эти письма с 5 до 7. |
She promised that she would have written these letters before mother come. Она пообещала, что она напишет эти письма до того, как придет мама. |
She promised that she would have been writing the letters for 3 hours before mother come. Она пообещала, что она будет писать эти письма 3 часа до того, как придет мама. |
| Simple | Continuous | Perfect | Perfect Continuous | |
| Present | every, always, often, seldom, sometimes, usually, as a rule, generally, from time to time | now, today, currently, at present, at this moment, still | already, just, ever, never, yet, before, today, this (month, year, week), since, for | for, since, lately, recently |
| Past | yesterday, the day before yesterday (2 days, 3 years), last (year, Sunday, lesson) | yesterday at 6 o'clock, yesterday from 5 till 6, yesterday when he came, yesterday the whole evening | by, earlier, before, already, yet | for, since, before, as |
| Future | tomorrow, the day after tomorrow, next (year, week, month), in (2 days) | tomorrow at 6 o'clock, tomorrow from 5 till 6, tomorrow when you come, tomorrow the whole evening | before, till, until, by then, by tomorrow | until, till, for a year, by the end of the... (day, month, year, morning) |
| Future in the Past | He said that... | |||