In every contract of sale, there are certain expressed and implied conditions and
warranties.
The term implied conditions means conditions which can be inferred fromn or guessed from the context of the contract.

Following are the implied conditions :
(i) Conditions as to Title.
(ii) Conditions as to Description.
(iii) Sale by Sample.
(iv) Conditions as to Quality or Fitness.
(v) Conditions as to Merchantability
(vi) Condition as to Wholesomeness.
(vii) Condition implied by Trade Usage.
Following are the implied warranties :
(i) Quiet Possession.
(ii) Free from Any Encumbrances.
(iii) Warranty in the case of Dangerous Goods.

Existing goods are those owned or possessed by the seller at the time of contract of sale. Goods possessed even refer to sale by agents or by pledgers. The existing goods may be either :
(i) Specific Goods : Specific goods denote goods identified and agreed upon at the time of contract of sale.
(ii) Ascertained Goods: The term 'ascertained goods' is also used as similar in meaning to specific goods.
(iii) Unascertained or Generic Goods: These are goods which are not identified and agreed upon at the time of contract of sale.

The property (ownership or title) in the goods has to pass at a future time or after the fulfillment of certain conditions specified in the contract is called agreement to sell.