English verb conjugation
CAN CONCRETE

Regular verb: concrete - concreted - concreted

Affirmation

Simple form	V-ing form
I can concrete you can concrete he can concrete we can concrete you can concrete they can concrete	I can be concreting you can be concreting he can be concreting we can be concreting you can be concreting they can be concreting
Perfect	V-ing perfect
I can have concreted you can have concreted he can have concreted we can have concreted you can have concreted they can have concreted	I can have been concreting you can have been concreting he can have been concreting we can have been concreting you can have been concreting they can have been concreting

Negation

Simple form	V-ing form
I can't concrete you can't concrete he can't concrete we can't concrete you can't concrete they can't concrete	I can't be concreting you can't be concreting he can't be concreting we can't be concreting you can't be concreting they can't be concreting
Perfect	V-ing perfect
I can't have concreted you can't have concreted he can't have concreted we can't have concreted you can't have concreted they can't have concreted	I can't have been concreting you can't have been concreting he can't have been concreting we can't have been concreting you can't have been concreting they can't have been concreting

Interrogative form

Simple form	V-ing form
can I concrete? can you concrete? can he concrete? can we concrete? can you concrete? can they concrete?	can I be concreting? can you be concreting? can he be concreting? can we be concreting? can you be concreting? can they be concreting?
Perfect	V-ing perfect
can I have concreted? can you have concreted? can he have concreted? can we have concreted? can you have concreted? can they have concreted?	can I have been concreting? can you have been concreting? can he have been concreting? can we have been concreting? can you have been concreting? can they have been concreting?

Interro-negative form

Simple form	V-ing form
can't I concrete? can't you concrete? can't he concrete? can't we concrete? can't you concrete? can't they concrete?	can't I be concreting? can't you be concreting? can't he be concreting? can't we be concreting? can't you be concreting? can't they be concreting?
Perfect	V-ing perfect
can't I have concreted? can't you have concreted? can't he have concreted? can't we have concreted? can't you have concreted? can't they have concreted?	can't I have been concreting? can't you have been concreting? can't he have been concreting? can't we have been concreting? can't you have been concreting? can't they have been concreting?