English verb conjugation
CAN CONSTRUCT

Regular verb: construct - constructed - constructed

Affirmation

Simple form	V-ing form
I can construct you can construct he can construct we can construct you can construct they can construct	I can be constructing you can be constructing he can be constructing we can be constructing you can be constructing they can be constructing
Perfect	V-ing perfect
I can have constructed you can have constructed he can have constructed we can have constructed you can have constructed they can have constructed	I can have been constructing you can have been constructing he can have been constructing we can have been constructing you can have been constructing they can have been constructing

Negation

Simple form	V-ing form
I can't construct you can't construct he can't construct we can't construct you can't construct they can't construct	I can't be constructing you can't be constructing he can't be constructing we can't be constructing you can't be constructing they can't be constructing
Perfect	V-ing perfect
I can't have constructed you can't have constructed he can't have constructed we can't have constructed you can't have constructed they can't have constructed	I can't have been constructing you can't have been constructing he can't have been constructing we can't have been constructing you can't have been constructing they can't have been constructing

Interrogative form

Simple form	V-ing form
can I construct? can you construct? can he construct? can we construct? can you construct? can they construct?	can I be constructing? can you be constructing? can he be constructing? can we be constructing? can you be constructing? can they be constructing?
Perfect	V-ing perfect
can I have constructed? can you have constructed? can he have constructed? can we have constructed? can you have constructed? can they have constructed?	can I have been constructing? can you have been constructing? can he have been constructing? can we have been constructing? can you have been constructing? can they have been constructing?

Interro-negative form

Simple form	V-ing form
can't I construct? can't you construct? can't he construct? can't we construct? can't you construct? can't they construct?	can't I be constructing? can't you be constructing? can't he be constructing? can't we be constructing? can't you be constructing? can't they be constructing?
Perfect	V-ing perfect
can't I have constructed? can't you have constructed? can't he have constructed? can't we have constructed? can't you have constructed? can't they have constructed?	can't I have been constructing? can't you have been constructing? can't he have been constructing? can't we have been constructing? can't you have been constructing? can't they have been constructing?