Regular verb: bill - billed - billed
Simple form | V-ing form |
I may bill you may bill she may bill we may bill you may bill they may bill | I may be billing you may be billing she may be billing we may be billing you may be billing they may be billing |
Perfect | V-ing perfect |
I may have billed you may have billed she may have billed we may have billed you may have billed they may have billed | I may have been billing you may have been billing she may have been billing we may have been billing you may have been billing they may have been billing |
Simple form | V-ing form |
I mayn't bill you mayn't bill she mayn't bill we mayn't bill you mayn't bill they mayn't bill | I mayn't be billing you mayn't be billing she mayn't be billing we mayn't be billing you mayn't be billing they mayn't be billing |
Perfect | V-ing perfect |
I mayn't have billed you mayn't have billed she mayn't have billed we mayn't have billed you mayn't have billed they mayn't have billed | I mayn't have been billing you mayn't have been billing she mayn't have been billing we mayn't have been billing you mayn't have been billing they mayn't have been billing |
Simple form | V-ing form |
may I bill? may you bill? may she bill? may we bill? may you bill? may they bill? | may I be billing? may you be billing? may she be billing? may we be billing? may you be billing? may they be billing? |
Perfect | V-ing perfect |
may I have billed? may you have billed? may she have billed? may we have billed? may you have billed? may they have billed? | may I have been billing? may you have been billing? may she have been billing? may we have been billing? may you have been billing? may they have been billing? |
Simple form | V-ing form |
mayn't I bill? mayn't you bill? mayn't she bill? mayn't we bill? mayn't you bill? mayn't they bill? | mayn't I be billing? mayn't you be billing? mayn't she be billing? mayn't we be billing? mayn't you be billing? mayn't they be billing? |
Perfect | V-ing perfect |
mayn't I have billed? mayn't you have billed? mayn't she have billed? mayn't we have billed? mayn't you have billed? mayn't they have billed? | mayn't I have been billing? mayn't you have been billing? mayn't she have been billing? mayn't we have been billing? mayn't you have been billing? mayn't they have been billing? |