If you do (You to do )。。。。you do (you can do)...
ability
1 ability
Your ability to do something is the fact that you can do it.
The public never had faith in his ability to handle the job.
He has the ability to bring out the best in others.
N-SING: N to-inf, oft with poss
= capability
2 ability abilities
Your ability is the quality or skill that you have which makes it possible for you to do something.
Her drama teacher spotted her ability.
I have confidence in the ability of the players.
They repeatedly questioned his leadership abilities.
Does the school cater for all abilities?
N-VAR: oft with poss
3 ability
If you do something to the best of your abilities or to the best of your ability, you do it as well as you can.
I take care of them to the best of my abilities.
They tackled them to the best of their ability.
PHR
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