Poll: I have known her .... ages.

RonBee

You can't use "since" there since "ages" is not a particular time. You can say "I have known her since we were both in kindergarten" but you can't say "I have known her since ages".

That is the last word. ;-)

Willbut

'For' corresponds to the length of time and 'since' marks the beginning.

JT

For answers 'how long' and 'since' answers 'when'.

italianbrother

Will you�re good at explaining thanks; can you help me with �then� and �than�...?

willbut

'Than' is used in comparisons. 'Then' is not.

haisay

student

Statuess

Further to previous explanations, 'since ages ago' would be fine, in my opinion. :)