I can precontract you can precontract she can precontract we can precontract you can precontract they can precontract
V-ing form
I can be precontracting you can be precontracting she can be precontracting we can be precontracting you can be precontracting they can be precontracting
Perfect
I can have precontracted you can have precontracted she can have precontracted we can have precontracted you can have precontracted they can have precontracted
V-ing perfect
I can have been precontracting you can have been precontracting she can have been precontracting we can have been precontracting you can have been precontracting they can have been precontracting
Negation
Simple form
I can't precontract you can't precontract she can't precontract we can't precontract you can't precontract they can't precontract
V-ing form
I can't be precontracting you can't be precontracting she can't be precontracting we can't be precontracting you can't be precontracting they can't be precontracting
Perfect
I can't have precontracted you can't have precontracted she can't have precontracted we can't have precontracted you can't have precontracted they can't have precontracted
V-ing perfect
I can't have been precontracting you can't have been precontracting she can't have been precontracting we can't have been precontracting you can't have been precontracting they can't have been precontracting
Interrogative form
Simple form
can I precontract? can you precontract? can she precontract? can we precontract? can you precontract? can they precontract?
V-ing form
can I be precontracting? can you be precontracting? can she be precontracting? can we be precontracting? can you be precontracting? can they be precontracting?
Perfect
can I have precontracted? can you have precontracted? can she have precontracted? can we have precontracted? can you have precontracted? can they have precontracted?
V-ing perfect
can I have been precontracting? can you have been precontracting? can she have been precontracting? can we have been precontracting? can you have been precontracting? can they have been precontracting?
Interro-negative form
Simple form
can't I precontract? can't you precontract? can't she precontract? can't we precontract? can't you precontract? can't they precontract?
V-ing form
can't I be precontracting? can't you be precontracting? can't she be precontracting? can't we be precontracting? can't you be precontracting? can't they be precontracting?
Perfect
can't I have precontracted? can't you have precontracted? can't she have precontracted? can't we have precontracted? can't you have precontracted? can't they have precontracted?
V-ing perfect
can't I have been precontracting? can't you have been precontracting? can't she have been precontracting? can't we have been precontracting? can't you have been precontracting? can't they have been precontracting?