Since And From Difference | Clear Usage Rules

English learners meet since and from early, yet many still pause over the since and from difference when they write or speak. This guide sets out clear rules, patterns, and examples so you can pick the right preposition with confidence.

Since And From At A Glance

Before stepping into details, it helps to see how the two words behave side by side. The table below gives a quick map you can return to while you read.

Use	Since	From
Basic idea	Starting point in time up to now or up to another point	Starting point in time, place, or source, often paired with another preposition
Typical tenses	Present perfect, present perfect continuous, past perfect	Present simple, past simple, and other tenses, with or without “to” or “until”
Time expressions	Specific points: 2010, Monday, last year, I was a child	Ranges: from 2010 to 2015, from Monday to Friday
Place and origin	Not used for place	Used for place and origin: from home, from London
Reason meaning	Can mean “because” as a conjunction	No reason meaning
Spoken questions	“How long have you… since…?” is common	“From when” sounds stiff; other wording is usual
Common learner error	Using it with a length of time instead of a point	Using it alone for ongoing time instead of a range or period

Since And From Difference In Everyday English

The phrase difference between since and from often appears in grammar questions, because both words talk about time. The real contrast sits in two ideas: whether the time continues to now, and whether the word also links to place or source.

Core Meaning Of Since

According to Cambridge Grammar, since points to a starting time and links it to a later time, often the present. You attach it to a clear point: a date, a day, a moment, or a past event.

In sentences such as “I have lived here since 2015”, the action began in 2015 and continues now. That link to the present is the heart of since when it talks about time.

Core Meaning Of From

From also points to a starting time, but it does not itself say anything about the end. Instead, it often appears with another word that adds the end of the period, such as to, till, or until. You see this in phrases such as “from 2015 to 2020” or “from Monday until Thursday”.

From reaches beyond time. It also marks place and origin: “from Spain”, “from the station”, “from my friend”. In those uses, there is no link to the present moment, only a starting point or source.

Using Since For Time Reference

When learners ask about since and from difference, tense choice sits at the center of the answer. Since normally works with perfect tenses, which connect past and present.

Since With Present Perfect

The present perfect shows that a past action affects the present, and grammar guides such as the British Council reference on the present perfect explain that since commonly appears in these sentences. You join have or has with the past participle and add a time phrase starting with since.

Typical patterns include “have lived since”, “has worked since”, and “have been studying since”. Each one shows a starting time in the past and an action that still continues.

Compare these pairs:

• “I live here.” (no time reference)
• “I have lived here since 2015.” (time reference with a point that continues to now)

• “She works at that company.”
• “She has worked at that company since March.”

In each case, since anchors the starting moment that still affects the present situation.

Since As A Conjunction Of Reason

Since also introduces a reason, similar to because. In this role it acts as a conjunction, not a pure preposition. In a sentence such as “Since it is raining, we will stay inside”, the clause with since gives the reason for staying in.

This meaning does not overlap with from. You can replace since with because in these cases, but you cannot replace it with from. That contrast often helps learners separate the time sense from the reason sense.

Using From For Time, Place, And Source

While since lives close to perfect tenses, from joins a much wider range of structures. It links starting points not only in time but also in space and origin.

From With Time Periods

From often teams up with another preposition to show the full range of time. Common pairs include “from… to…” and “from… until…”. These patterns give both the start and the end of the period.

Sentences such as “The library is open from nine to five”, “He lived in Rome from 2010 to 2018”, and “Meetings run from Monday until Thursday” all follow this pattern. In each sentence, the action or state runs only inside the range; there is no promise that it continues now.

From also works in time phrases where the end is clear from context: “Registrations start from next week” or “Shops stay open from late November”. In these cases, readers still expect an end, even if it is not written.

From With Place And Origin

One area where the two words never compete is place. From introduces where something or someone starts: “She is from Canada”, “The train from Paris”, “Messages from your tutor”. In each case, it shows origin or starting point.

This use extends to sources that are not physical places. “Advice from a teacher”, “data from a survey”, and “noise from the street” all show a source. The word since cannot stand in these positions.

Common Mistakes With Since And From

Many learners carry habits from their first language into English. Those habits can lead to repeated errors with these two short words. Seeing the patterns of mistakes makes it easier to avoid them.

Using Since With A Time Period

A frequent error is to place since before a length of time instead of a clear point. Sentences such as “I have lived here since five years” sound wrong in standard English.

The fix is simple: switch to for when the phrase gives a length of time. You say, “I have lived here for five years” but “I have lived here since 2018”. The first phrase names a period; the second names a starting point.

Using From Alone For Ongoing States

Another common slip is to use from instead of since with the present perfect for an ongoing state. A learner might write “I have worked here from 2019”. Native speakers nearly always say “since 2019” in this pattern.

You can use from with dates when the action is limited to a range and does not need a perfect tense: “I worked there from 2019 to 2021”. As soon as you want to show that the action started in the past and continues, since becomes the natural choice.

Mixing Time And Place Meanings

Now and then, learners try to use since with place, as in “since London”. Standard English uses from for place: “from London” or “from the station”. Since stays tied to time and reason.

The reverse can happen with time expressions. A phrase such as “from a long time” sounds strange. Native speakers prefer “for a long time” for length and “since last year” for a starting point.

Difference Between Since And From In Questions

Questions show the contrast between these words in a clear way. When a speaker wants to know how long something has continued, the word choice usually follows the tense.

With the present perfect, questions such as “How long have you lived here?” or “How long has she worked there?” often lead to answers with since or for: “I have lived here since 2012” or “She has worked there for six months”. A question such as “Since when have you lived here?” is possible, but sounds marked or even angry in speech.

When asking about a range, speakers switch to from. Questions such as “From when to when did the course run?” or “From which year to which year was he president?” expect answers that give both start and end. In practice, many speakers choose shorter wording such as “What years did the course run?” instead.

Practice Sentences With Since And From

Practice helps this contrast between since and from feel natural. Read the patterns in the table, then hide the examples and try to rebuild them in your own words.

Pattern	Example Sentence	Why It Works
have/has + past participle + since + point in time	They have studied English since primary school.	Action started at a past point and still continues now.
have/has been + -ing form + since + point in time	She has been working here since March.	Ongoing activity with a clear starting time.
verb (past simple) + from A to B	He lived in Mexico from 2012 to 2016.	Both start and end of the period appear in the sentence.
be + from + place	My neighbour is from Brazil.	From marks country of origin, not time.
noun + from + source	We received a letter from the bank.	From shows where the letter came from.
since + clause (reason)	Since we finished early, we went for coffee.	The since clause states the reason for the main action.
present perfect question + since/for answer	How long have you known her? I have known her since 2010.	The question invites an answer with either for or since.

Quick Checklist For Since And From

A short checklist helps you reach for the right word fast when writing or speaking:

• Ask whether you need to show an action that continues to now. If yes, since with a perfect tense often fits.
• Check whether your time phrase shows a point or a period. Use since with points and for with periods.
• Use from for ranges in time when both start and end matter in the sentence.
• Keep from for place and source; do not switch it with since in those slots.
• Reserve the reason meaning for since as a conjunction, not for from.
• When in doubt, check an example in a learner dictionary and copy the pattern.

When you read English texts, take a moment to notice how skilled writers handle these two words. Copy a few sentences into your notebook, mark the time phrases, and label each one as since, from, or for. That small habit builds strong memory and fluency.

With these habits, the since and from difference turns from a confusing point into a small detail you control with ease every time you write or speak.