I can prerequire you can prerequire she can prerequire we can prerequire you can prerequire they can prerequire
V-ing form
I can be prerequiring you can be prerequiring she can be prerequiring we can be prerequiring you can be prerequiring they can be prerequiring
Perfect
I can have prerequired you can have prerequired she can have prerequired we can have prerequired you can have prerequired they can have prerequired
V-ing perfect
I can have been prerequiring you can have been prerequiring she can have been prerequiring we can have been prerequiring you can have been prerequiring they can have been prerequiring
Negation
Simple form
I can't prerequire you can't prerequire she can't prerequire we can't prerequire you can't prerequire they can't prerequire
V-ing form
I can't be prerequiring you can't be prerequiring she can't be prerequiring we can't be prerequiring you can't be prerequiring they can't be prerequiring
Perfect
I can't have prerequired you can't have prerequired she can't have prerequired we can't have prerequired you can't have prerequired they can't have prerequired
V-ing perfect
I can't have been prerequiring you can't have been prerequiring she can't have been prerequiring we can't have been prerequiring you can't have been prerequiring they can't have been prerequiring
Interrogative form
Simple form
can I prerequire? can you prerequire? can she prerequire? can we prerequire? can you prerequire? can they prerequire?
V-ing form
can I be prerequiring? can you be prerequiring? can she be prerequiring? can we be prerequiring? can you be prerequiring? can they be prerequiring?
Perfect
can I have prerequired? can you have prerequired? can she have prerequired? can we have prerequired? can you have prerequired? can they have prerequired?
V-ing perfect
can I have been prerequiring? can you have been prerequiring? can she have been prerequiring? can we have been prerequiring? can you have been prerequiring? can they have been prerequiring?
Interro-negative form
Simple form
can't I prerequire? can't you prerequire? can't she prerequire? can't we prerequire? can't you prerequire? can't they prerequire?
V-ing form
can't I be prerequiring? can't you be prerequiring? can't she be prerequiring? can't we be prerequiring? can't you be prerequiring? can't they be prerequiring?
Perfect
can't I have prerequired? can't you have prerequired? can't she have prerequired? can't we have prerequired? can't you have prerequired? can't they have prerequired?
V-ing perfect
can't I have been prerequiring? can't you have been prerequiring? can't she have been prerequiring? can't we have been prerequiring? can't you have been prerequiring? can't they have been prerequiring?