Which tense to use? — decision flowchart

How to Use This Decision Flowchart

Choosing the right tense in English depends on when an action happens and how it relates to the present moment. This flowchart guides you through the decision-making process by asking simple questions about your sentence. Start at the top and follow the arrows to find the correct tense. The key is to identify whether you're talking about the past, present, or future, and whether the action is complete, ongoing, or habitual.

Where the Tense Comparison Articles sits on the English tense timeline

Understanding the Three Main Time Zones

English tenses fall into three broad categories based on time. The PAST includes Simple Past, Past Continuous, Present Perfect, and Past Perfect—all used for events that have already occurred. The PRESENT covers Simple Present, Present Continuous, and Present Perfect Continuous—for current situations, habits, and actions happening now. The FUTURE encompasses will-future, going to-future, Present Continuous (future plans), and Present Simple (scheduled events)—for events that haven't happened yet.

Secondary Questions to Ask

After identifying your time zone, ask yourself: Is the action complete or still ongoing? Is it a single event or a repeated habit? Does it have a connection to the present moment? These secondary questions help distinguish between similar tenses. For example, both Simple Past and Present Perfect refer to completed actions, but Present Perfect implies relevance to now, while Simple Past emphasizes when it happened. The flowchart incorporates these distinctions to lead you to the most accurate choice.

Decision Flowchart: Which Tense Should I Use?

Was the action in progress at a specific past moment?

Yes

Did another action interrupt it?

Yes

Past Continuous

Example

I was reading when the phone rang.

Past Continuous

Example

At 8 pm last night, she was cooking dinner.

Did it happen before another past event?

Yes

Was it ongoing up to that earlier event?

Yes

Past Perfect Continuous

Example

She had been waiting for an hour before he arrived.

Past Perfect

Example

He had left before I arrived.

Past Simple

Example

She visited Paris last summer.

Is the action happening right now or temporarily?

Yes

Present Continuous

Example

I am studying for my exam right now.

Does it connect past experience or result to now?

Yes

Has it been ongoing until now?

Yes

Present Perfect Continuous

Example

She has been working here for five years.

Present Perfect

Example

I have visited Japan twice.

Present Simple

Example

Water boils at 100 degrees Celsius.

Is it a pre-arranged plan or fixed appointment?

Yes

going to (or Present Continuous for schedules)

Example

We are going to visit my parents this weekend. / The train leaves at 9 am.

Is it a spontaneous decision or prediction?

Yes

Will it be in progress at a future moment?

Yes

Future Continuous

Example

This time tomorrow, I will be flying to New York.

Future Simple (will)

Example

I'll have a coffee, please.

Will it be completed before a specific future point?

Yes

Future Perfect

Example

By Friday, she will have finished the report.

Future Simple (will)

Example

It will probably rain tomorrow.

Formula

START: When does the action happen?

Ask yourself: past, present, or future?

Examples

I have lived in Berlin for three years.

Present Perfect · Still relevant to now; the action started in the past but connects to the present

She was working when you called yesterday.

Past Continuous · An ongoing action interrupted by another past event

By next month, I will have finished my degree.

Future Perfect · A future action that will be complete by a specific future time

He drinks coffee every morning before work.

Simple Present · A habitual, repeated action in the present

They are going to move to Canada next year.

Going to-future · A future plan or intention with visible preparation

I had already eaten dinner when she arrived.

Past Perfect · An action completed before another past event

When to use it

Academic Writing

In essays and reports, you frequently switch between tenses. Use this flowchart to ensure your past research, present analysis, and future implications are expressed clearly.

"Researchers have discovered that productivity decreases when workers are tired. This suggests that companies should implement rest periods."

Storytelling & Narration

When telling a story, you need past tenses for the main events and additional tenses for background information and reflections.

"She had been waiting for two hours before the bus finally arrived. It was the worst day of her life."

Planning & Discussions

Conversations about schedules, intentions, and predictions require future tenses. Use the flowchart to match your certainty level with the appropriate tense.

"Are you going to attend the meeting tomorrow? I think it will be important for the project."

Expressing Habits & Routines

Describe what you do regularly or how things work in general using Simple Present tense for clear, straightforward statements.

"I usually wake up at 7 a.m. and exercise before breakfast."

Signal words

yesterday last week already just yet for since now at the moment usually often tomorrow next month in two hours as soon as while when

Common Mistakes

Wrong

I have forgotten my keys yesterday.

✓

Correct

I forgot my keys yesterday.

Yesterday marks a specific past time, so use Simple Past, not Present Perfect.

Wrong

She is living in Paris for five years.

✓

Correct

She has been living in Paris for five years.

A duration with present relevance requires Present Perfect Continuous, not Present Continuous.

Wrong

I will see you after I will finish my work.

✓

Correct

I will see you after I finish my work.

In time clauses after 'after,' use Simple Present, not will-future.

Wrong

When he arrived, I was cooking dinner since one hour.

✓

Correct

When he arrived, I had been cooking dinner for one hour.

For completed duration before another past event, use Past Perfect Continuous.

Wrong

She drinks coffee every morning. She is also drinking tea sometimes.

✓

Correct

She drinks coffee every morning. She also drinks tea sometimes.

Habitual actions use Simple Present consistently, not Present Continuous.

KEY TAKEAWAYS

What to Remember

Identify the timeframe first: past, present, or future to narrow down your tense options.
Determine if the action is complete, ongoing, or habitual, as this affects which specific tense you need.
Use past tenses for completed actions; present tenses describe current situations or habitual actions.
Choose between simple, continuous, and perfect forms based on whether you emphasize completion or duration.
Remember that context and time expressions (yesterday, now, tomorrow) are crucial clues for selecting the correct tense.

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English tenses timeline — reference chart