4.108 contractions

In spoken English, when 'will' and 'would' are used after a pronoun, they are often shortened to '-'ll' and '-'d' and added to the pronoun.

'Will' and 'would' cannot be shortened like this when they are used on their own, without a following verb. For example, you can say 'Paul said he would come, and I hope he will', but you cannot say 'Paul said he would come, and I hope he'll'.