The pelicans (are not) returning to the coast this spring.

If you (do not) complete your homework, your grade will suffer.

I (have not) decided whether or not I'm going to camp.

It (does not) matter that you got the answer. You still must show the work.

I thought my brother was coming, but maybe he (is not)

I (was not) sure what time Mikayla was arriving.

It (has not) stopped in raining for three days.

I (do not) want to go swimming.

They (are not) letting us know their secret.

Those toys (do not) belong on the floor.

The snow (has not) started falling yet.

We (have not) found the missing keys.