Please look at these sentences
You don't need to explain. I can seefor myselfwhat is happening
You don't need to explain what I did to everyone. I can speakfor myself
They are at college now, so they have to organize thingsfor themselves.
I will tell you the answer this time, but in future you must learn to thinkfor yourself
if we replace for + reflexive in these sentences with By+ Reflexive and translate them into Arabic Language , we don't find any difference in meaning.
for + reflexive indicates "independence" while by+ reflexive means "alone"...OK, BUT why do we use for+ reflexive in these sentences? is that because these sentences includes phrases like (can see) or words like (think)? in other words, do these words and phrases have anything to do with choosing "for + reflexive " and not by+ reflexive.
thanks a lot
Yousef M. Shaheen