I'm sorry, but I .............. to come to your party next week. USE FUTURE TENSE NEGATIVE
I'm sorry, but I WON'T BE ABLE TO come to your party next week.
She .................. understand everything. USE PAST TENSE
She COULD / WAS ABLE TO understand everything.
I think I ................ speak English quite well in a few months. USE FUTURE TENSE
I think I WILL BE ABLE TO speak English quite well in a few months.
After a few months of studying, she ................ speak French well. USE PAST TENSE
After a few months of studying, she COULD / WAS ABLE TO speak French well.
The chief ................ see you on Tuesday. USE FUTURE TENSE
The chief WILL BE ABLE TO see you on Tuesday.
We ........ take books from the library because it was closed. USE PAST TENSE NEGATIVE
We COULDN'T / WEREN'T ABLE TO take books from the library because it was closed.
I'm too tired. I ............ finish my work now. USE PRESENT TENSE NEGATIVE
I'm too tired. I CAN'T / I'M NOT ABLE TO finish my work now.
She .......... dance very well when she was a girl. USE PAST TENSE
She COULD / WAS ABLE TO dance very well when she was a girl.
She ....... finish her homework last night. USE PAST TENSE NEGATIVE
She COULDN'T / WASN'T ABLE TO finish her homework last night.
I .......... help you with English tonight. USE FUTURE TENSE
I WILL BE ABLE TO help you with English tonight.
I ............. get tickets yesterday. USE PAST TENSE
I COULD / WAS ABLE TO get tickets yesterday.
Не ............... talk for hours. USE PRESENT TENSE.
Не CAN / IS ABLE TO talk for hours.
If you will have time, we ................ go to the party . USE FUTURE TENSE.
If you will have time, we WILL BE ABLE TO go to the party.
