Choose the incorrectly spelt word.

Burnig

The incorrectly spelled word is "Burnig" (Option 4).

Explanation:

1. Morning: Correctly spelled. It refers to the period of time between midnight and noon.

2. Washing: Correctly spelled. It is the gerund form of the verb "wash" and refers to the act of cleaning or laundering.

3. Calling: Correctly spelled. It is the present participle form of the verb "call" and refers to the act of making a phone call or getting someone's attention.

4. Burnig: Incorrectly spelled. The correct spelling is "Burning." It is the present participle form of the verb "burn" and refers to the act of being on fire or producing flames.