How many tenses are there in English?

Three main tenses — present, past and future — each in four aspects: indefinite, continuous, perfect and perfect continuous, making twelve in all.

What is the easiest way to learn tenses?

Memorise each structure together with one example sentence rather than as an abstract rule, then write five sentences about your own day in each tense every day.

Tense — A Complete Guide to All Twelve

Q: What is the difference between “since” and “for”?

“Since” goes before a point in time (since 2020, since Monday) and “for” before a duration (for two hours, for five years). Both are used with the perfect and perfect continuous.

বাংলায় পড়তে চাও? দেখো: Tense — ১২টি কালের সম্পূর্ণ গাইড

Tense is the single largest source of error in English — and also the easiest to fix, because it is rule-based. Once the structures of all twelve are memorised, the room for error in building a sentence shrinks dramatically.

This page brings together the structure of each tense, how to recognise it from Bengali, and examples — useful for SSC and HSC English 2nd Paper, for job exams and for speaking alike.

The present tense — four forms

Tense	Structure	How to spot it in Bengali	Example
Present indefinite	Subject + base verb, or verb + s	“I do / he does” — habit or general truth	He goes to school every day.
Present continuous	am, is or are + verb-ing	“am doing” — happening now	She is writing a letter.
Present perfect	have or has + past participle	“have done” — finished, with a present result	I have finished my work.
Present perfect continuous	have or has been + verb-ing + since or for	“have been doing” — for a stated period	He has been reading for two hours.

Use “since” before a point in time (since 2020, since Monday) and “for” before a duration (for two hours, for five years) — remembering just this almost eliminates errors in the perfect continuous.

The past tense — four forms

Tense	Structure	Example
Past indefinite	Subject + past form of the verb	He wrote a letter yesterday.
Past continuous	was or were + verb-ing	They were playing football.
Past perfect	had + past participle	The train had left before we reached.
Past perfect continuous	had been + verb-ing	She had been waiting for an hour.

When two things happened in the past, the earlier one takes the past perfect (had + past participle) and the later one the past indefinite — the rule most often tested in exams.

The future tense — four forms

Tense	Structure	Example
Future indefinite	shall or will + base verb	I will call you tomorrow.
Future continuous	shall or will be + verb-ing	We will be travelling at noon.
Future perfect	shall or will have + past participle	He will have finished by Friday.
Future perfect continuous	shall or will have been + verb-ing	By June she will have been teaching for ten years.

Which tenses matter most

Four tenses cover about 80% of speech — present indefinite, present continuous, past indefinite and future indefinite. Master those first.
In exams, the right-form-of-verbs items test the present perfect and past perfect most.
Narration and voice change need every structure, so learn all twelve once.
Tense questions are near-certain in job exams, and with the rules memorised they are the fastest marks on the paper.