present perfect with ago

[English4everyone]

can it be correct to say:
I have lived here since 2 months ago.
Or
I haven't seen them since 3 weeks ago.
I mean can we use 'since' with 'ago' in this way? Or is it totally wrong?
Many thanks.

[bhaisahab]

can it be correct to say:
I have lived here since 2 months ago.
Or
I haven't seen them since 3 weeks ago.
I mean can we use 'since' with 'ago' in this way? Or is it totally wrong?
Many thanks.

It's OK.

[emsr2d2]

can it be correct to say:
I have lived here since 2 months ago.
Or
I haven't seen them since 3 weeks ago.
I mean can we use 'since' with 'ago' in this way? Or is it totally wrong?
Many thanks.

I find those very unnatural. Whilst they might possible, they would both grate on my ears.

I have lived here for two months.
I have lived here since 16th November.
I moved here two months ago.

I haven't seen them since the end of December.
I haven't seen them since December 27th.
I haven't seen them for three weeks.

[Barb_D]

It sounds odd to me the way you have written them, but I wouldn't completely disallow "since" with "ago" when there is more information.

I've been losing weight steadily since two months ago -- questionable.
I've been losing weight steadily since I started exercising two months ago -- perfectly fine

She's been despondent since four days ago -- questionable
She's been despondent since her boyfriend left on a business trip four days ago -- perfectly fine