Clearing present simple and present perfect with since

Question

Kindly don't get me wrong that I am asking that expressed question about since with present simple and present perfect.For present simple , we just show actions at the present situation.Present perfect that related to the past.It is okay.Here I want to point is to clear my mind and I would like to dare to use that usage with confidence.I am not judging about usage , I am trying to divide clearly that usage of since with present simple so as to dare to use..How to I divide that

A. If I want to show action with since, I just use the present perfect. For example

1. I have gone from market since My mother have called me up.

2. They have moved down town since their uncle invited them.

B. If I want to show a state , for the state, I can use present simple in place of present perfect with since. Because present simple is used for general truth. It was, now it is and future it will be. For example

3. The sun rises in the East and sets in the West.

4. The cow gives milk us.

I want to say here is present simple also can imply the past. Also still true right now. I am okay and I have been okay , those are showing the state. I am satisfied and I have been satisfied, they do the same. Moreover, I accept and I have accepted as well. The state does not need to show continuous form. It is used for simple form.

So if I want to show state I can use present simple with since. I am okay now means I was okay since something happened. I am satisfied now means I was satisfied since something happened. It does not make any difference because they are showing the state. So I want to divide and keep in mind, I want to show a state with since then I don't need to use present perfect and I can use present simple with since. That is how I divide and keep in mind. For example

5. I know that famous actress since she acted as a kid.

6. I accept that rule since they declared to use it.

No need to say my level, yes I know, but I need to say my level. My level is B1. Because I want to make good foundation for English that's why I am asking this my concept to make me clear myself.

Can I divide and use that concept? In my question, I dont want to point out after since tenses. For example since simple past or since perfect tenses.I want to point out that simple present before since.

Answer 1

To lift an explanation directly from Oxford dictionary, 'since' means "in the intervening period between the time mentioned and the time under consideration, typically the present".

So there is the possibility for two different tenses within a statement that uses since - an event in the past that marked the beginning of the period, and then the action or state that either exists or continues in the present.

Some good examples would be:

• I have been learning since I was 11. ("have been" is perfect present tense, because the happiness continues. "I was 11" is an event in the past)
• I am a lot happier since I left my job. ("I am" is present tense because it is a current state. "I left" is past because leaving the job was an event in the past)

Your examples:

I have gone from market since My mother have called me up.

This is grammatically incorrect and probably an incorrect use of "since". If by "I have gone" you mean "I left", this is a past event, so is the phone call. It's not a good context to use "since". You should probably just say "I left the market when my mother called me".

They have moved down town since their uncle invited them.

Again, "moved" is a past event, so this isn't good with since. You could say "they moved down town after their uncle invited them", or if you really wanted to use 'since', change it from a past event to a present perfect verb and say "they have lived down town since their uncle invited them".

I know that famous actress since she acted as a kid.

This is almost right - "I know" is a present condition, but "acted" is not really a past event. She might have acted for years. She might still be a kid.

I accept that rule since they declared to use it.

This would be better with "once", or "after", rather than "since". You have to also remember that "since" has a secondary meaning of because, and it could mean that in this example which changes the meaning entirely.