Write sentences of your own using different Modal in each.

1. Two sentences expressing ability (present as well as past)

(a) Present ability.
(b) Past ability.

1. I can dance well. (present)
2. I have been able to secure good marks. (present)
23. I could run fast when I was younger. (past)
4. I used to be able to climb trees in my adolescence. (past)