脱線しないようにしなきゃな。の英語

You gotta have exact change.

You'd better stay on your guard.

Go jump in the lake.

You must be operated upon.

Be careful not to fall.

Be careful not to trip.

Be careful not to trip and fall.

I need to cut my nails.

You shouldn't skip in reading.

I should stop procrastinating.

Don't cut in line.

We must be careful not to lower the quality―to keep up the standard.

You must get rid of the habit of biting your nails.

Take care not to fall.

I'll try not to be disturbing.

I will work on not becoming flustered.

Take care not to fall.

prevent gossip spreading

Take care not to catch cold.

Take care not to catch a cold.

Be careful not to catch a cold.

You must not go free-diving.

You must remain calm.

Don't quit.

You should be prepared for emergencies.

We have to keep it a secret.

I have to hurry.

(a) stern necessity

You guys cannot quarrel with each other.

an inextricable maze