I do not yawn you do not yawn he does not yawn we do not yawn you do not yawn they do not yawn
Present continuous
I am not yawning you are not yawning he is not yawning we are not yawning you are not yawning they are not yawning
Preterite
I did not yawn you did not yawn he did not yawn we did not yawn you did not yawn they did not yawn
Preterite continuous
I was not yawning you were not yawning he was not yawning we were not yawning you were not yawning they were not yawning
Present perfect
I have not yawned you have not yawned he has not yawned we have not yawned you have not yawned they have not yawned
Present perfect continuous
I have not been yawning you have not been yawning he has not been yawning we have not been yawning you have not been yawning they have not been yawning
Pluperfect
I had not yawned you had not yawned he had not yawned we had not yawned you had not yawned they had not yawned
Pluperfect continuous
I had not been yawning you had not been yawning he had not been yawning we had not been yawning you had not been yawning they had not been yawning
Future
I will not yawn you will not yawn he will not yawn we will not yawn you will not yawn they will not yawn
Future continuous
I will not be yawning you will not be yawning he will not be yawning we will not be yawning you will not be yawning they will not be yawning
Future perfect
I will not have yawned you will not have yawned he will not have yawned we will not have yawned you will not have yawned they will not have yawned
Future perfect continuous
I will not have been yawning you will not have been yawning he will not have been yawning we will not have been yawning you will not have been yawning they will not have been yawning
Conditional
Present
I would not yawn you would not yawn he would not yawn we would not yawn you would not yawn they would not yawn
Present continuous
I would not be yawning you would not be yawning he would not be yawning we would not be yawning you would not be yawning they would not be yawning
Past
I would not have yawned you would not have yawned he would not have yawned we would not have yawned you would not have yawned they would not have yawned
Past continuous
I would not have been yawning you would not have been yawning he would not have been yawning we would not have been yawning you would not have been yawning they would not have been yawning