What is the past tense of lawnmower?

Answer 1

The word lawnmower is a noun, a word for a thing.

Only verbs have a past tense. A verb is a word for an action or a state of being.

Example sentences for the noun:

The lawnmower would not start.

I bought a new lawnmower.

He borrowed his uncle's lawnmower.

The riding lawnmower seemed like a blessing to my aging father.

The verb form is to mow, a word for an action.

The past tense is mowed.

Example sentences for the verb to mow:

You can use my lawnmower to mow your lawn.

After you have mowed your lawn, you can return my lawnmower.

Answer 2

The past tense of "lawnmower" is "mowed the lawn."