会 Huì indicating 'can / know how to'
我会游泳。 Wǒ huì yóuyǒng.
'I can swim.'
Below either 会 huì or 能 néng may be used:
我 会 / 能 说汉语，弹钢琴和游泳。 Wǒ huì / néng shuō hànyǔ, tán gāngqín hé yóuyǒng.
'I can / am able to speak Chinese, play the piano and swim.'
With 会 the idea would be that a skill has been acquired through habit, practice or learning.
With 能, when the action is carried out, the spatial, temporal or other external aspects are fulfilled, or the subject already has the ability or skill in question.
会 huì indicating the future:
Q: 明天那家公司要面试我，你觉得他们会录用我吗？ Míngtiān nà jiā gōngsī yào miànshì wo, nǐ juéde tāmen huì lùyòng wo ma?
'Tomorrow that company is going to interview me; do you think they will take me on?'
Note that wo has no tone here, as one is the object of 面试 and the other the object of 录用.
A: 你这么能干，他们肯定会录用你。 Nǐ zhème nénggàn, tāmen kěndìng huì lùyòng ni.
'You are so efficient. They will definitely take you on.'
Note that ni has no tone here, as it is the object of 录用.