The Helping Verbs of all tenses.
1.Simple Present
P.HV – do / does
N.HV - do not / does not
2.Present Continuous
P.HV – am / is / are
N.HV – am not / is not / are not
3. Present Perfect
P.HV – have / has
N.HV – have not / has not
4. Present Perfect Continuous
P.HV – have been / has been
N.HV – have not been / has not been
5. Simple Past
P.HV – did
N.HV – did not
6. Past Continuous
P.HV – was / were
N.HV – was not / were not
7. Past Perfect
P.HV – had
N.HV – had not
8. Past Perfect Continuous
P.HV – had been
N.HV – had not been
9. Simple Future
P.HV – will / shall
N.HV – will not / shall not
10. Future Continuous
P.HV – will be / shall be
N.HV – will not be / shall not be
11. Future Perfect
P.HV – will have / shall have
N.HV – will not have / shall not have
12. Future Perfect Continuous
P.HV – will have been / shall have been
N.HV – will not have been / shall not have been
P.HV – Positive Helping Verb
N.HV – Negative Helping Verb