Contracts which must be under seal.
This is a contract drawn and sealed a party and submitted to the other for signature. Such is a contract requires on consideration. Example include lease agreement, charge, mortgage.
Contracts which must be in writing.
This is a contract which must be embodied in a formal document. The law insists that it must be written. Examples include, hire purchase agreement, contract of marine insurance.
Contracts which must be evidenced in writing
This is a contract which must be evidenced some note or memorandum. The law does not prescribe the form of note or memorandum. Examples include:
Contracts of insurance other than marine,
Contract of guarantee