| Simple present |
don't deteriorate |
don't deteriorate |
doesn't deteriorate |
don't deteriorate |
don't deteriorate |
don't deteriorate |
| Present continuous |
am not deteriorating |
are not deteriorating |
is not deteriorating |
are not deteriorating |
are not deteriorating |
are not deteriorating |
| Simple past |
didn't deteriorate |
didn't deteriorate |
didn't deteriorate |
didn't deteriorate |
didn't deteriorate |
didn't deteriorate |
| Simple past |
was not deteriorating |
were not deteriorating |
was not deteriorating |
were not deteriorating |
were not deteriorating |
were not deteriorating |
| Simple future |
won't deteriorate |
won't deteriorate |
won't deteriorate |
won't deteriorate |
won't deteriorate |
won't deteriorate |
| Future continuous |
will not be deteriorating |
will not be deteriorating |
will not be deteriorating |
will not be deteriorating |
will not be deteriorating |
will not be deteriorating |
| Present perfect |
have not deteriorated |
have not deteriorated |
has not deteriorated |
have not deteriorated |
have not deteriorated |
have not deteriorated |
| Present perfect continuous |
have not been deteriorating |
have not been deteriorating |
has not been deteriorating |
have not been deteriorating |
have not been deteriorating |
have not been deteriorating |
| Present continuous |
am not deteriorating |
are not deteriorating |
is not deteriorating |
are not deteriorating |
are not deteriorating |
are not deteriorating |
| Past perfect |
had not deteriorated |
had not deteriorated |
had not deteriorated |
had not deteriorated |
had not deteriorated |
had not deteriorated |
| Past perfect continuous |
had not been deteriorating |
had not been deteriorating |
had not been deteriorating |
had not been deteriorating |
had not been deteriorating |
had not been deteriorating |
| Future perfect |
will have not deteriorated |
will have not deteriorated |
will have not deteriorated |
will have not deteriorated |
will have not deteriorated |
will have not deteriorated |
| Future perfect continuous |
will have not been deteriorating |
will have not been deteriorating |
will have not been deteriorating |
will have not been deteriorating |
will have not been deteriorating |
will have not been deteriorating |