the difference among past tense, perfect tense and used to ..(verb)..

[duiter]

Hi there


Is this power point slide really giving a correct English explanation of the difference between past tense and perfect tense

See slide number 6
Simple Past Vs. Present Perfect Tense Ppt Presentation

so,...............

What is the difference between She used to live in Boston for 5 years

and

She lived in Boston for 5 years


Can 'for' be used for past habit ' used to...(verb)..?

thanks and have a nice day

[corum]

I used to live there ≠ I lived there
I used to live there for 5 years = I lived there for 5 years

[corum]

I used to live there ≠ I lived there
I used to live there for 5 years = I lived there for 5 years

How can it be? Simple!

I lived there for one week.
I used to live there for one week.