I can reinforce you can reinforce she can reinforce we can reinforce you can reinforce they can reinforce
V-ing form
I can be reinforcing you can be reinforcing she can be reinforcing we can be reinforcing you can be reinforcing they can be reinforcing
Perfect
I can have reinforced you can have reinforced she can have reinforced we can have reinforced you can have reinforced they can have reinforced
V-ing perfect
I can have been reinforcing you can have been reinforcing she can have been reinforcing we can have been reinforcing you can have been reinforcing they can have been reinforcing
Negation
Simple form
I can't reinforce you can't reinforce she can't reinforce we can't reinforce you can't reinforce they can't reinforce
V-ing form
I can't be reinforcing you can't be reinforcing she can't be reinforcing we can't be reinforcing you can't be reinforcing they can't be reinforcing
Perfect
I can't have reinforced you can't have reinforced she can't have reinforced we can't have reinforced you can't have reinforced they can't have reinforced
V-ing perfect
I can't have been reinforcing you can't have been reinforcing she can't have been reinforcing we can't have been reinforcing you can't have been reinforcing they can't have been reinforcing
Interrogative form
Simple form
can I reinforce? can you reinforce? can she reinforce? can we reinforce? can you reinforce? can they reinforce?
V-ing form
can I be reinforcing? can you be reinforcing? can she be reinforcing? can we be reinforcing? can you be reinforcing? can they be reinforcing?
Perfect
can I have reinforced? can you have reinforced? can she have reinforced? can we have reinforced? can you have reinforced? can they have reinforced?
V-ing perfect
can I have been reinforcing? can you have been reinforcing? can she have been reinforcing? can we have been reinforcing? can you have been reinforcing? can they have been reinforcing?
Interro-negative form
Simple form
can't I reinforce? can't you reinforce? can't she reinforce? can't we reinforce? can't you reinforce? can't they reinforce?
V-ing form
can't I be reinforcing? can't you be reinforcing? can't she be reinforcing? can't we be reinforcing? can't you be reinforcing? can't they be reinforcing?
Perfect
can't I have reinforced? can't you have reinforced? can't she have reinforced? can't we have reinforced? can't you have reinforced? can't they have reinforced?
V-ing perfect
can't I have been reinforcing? can't you have been reinforcing? can't she have been reinforcing? can't we have been reinforcing? can't you have been reinforcing? can't they have been reinforcing?