I can coagulate you can coagulate he can coagulate we can coagulate you can coagulate they can coagulate
V-ing form
I can be coagulating you can be coagulating he can be coagulating we can be coagulating you can be coagulating they can be coagulating
Perfect
I can have coagulated you can have coagulated he can have coagulated we can have coagulated you can have coagulated they can have coagulated
V-ing perfect
I can have been coagulating you can have been coagulating he can have been coagulating we can have been coagulating you can have been coagulating they can have been coagulating
Negation
Simple form
I can't coagulate you can't coagulate he can't coagulate we can't coagulate you can't coagulate they can't coagulate
V-ing form
I can't be coagulating you can't be coagulating he can't be coagulating we can't be coagulating you can't be coagulating they can't be coagulating
Perfect
I can't have coagulated you can't have coagulated he can't have coagulated we can't have coagulated you can't have coagulated they can't have coagulated
V-ing perfect
I can't have been coagulating you can't have been coagulating he can't have been coagulating we can't have been coagulating you can't have been coagulating they can't have been coagulating
Interrogative form
Simple form
can I coagulate? can you coagulate? can he coagulate? can we coagulate? can you coagulate? can they coagulate?
V-ing form
can I be coagulating? can you be coagulating? can he be coagulating? can we be coagulating? can you be coagulating? can they be coagulating?
Perfect
can I have coagulated? can you have coagulated? can he have coagulated? can we have coagulated? can you have coagulated? can they have coagulated?
V-ing perfect
can I have been coagulating? can you have been coagulating? can he have been coagulating? can we have been coagulating? can you have been coagulating? can they have been coagulating?
Interro-negative form
Simple form
can't I coagulate? can't you coagulate? can't he coagulate? can't we coagulate? can't you coagulate? can't they coagulate?
V-ing form
can't I be coagulating? can't you be coagulating? can't he be coagulating? can't we be coagulating? can't you be coagulating? can't they be coagulating?
Perfect
can't I have coagulated? can't you have coagulated? can't he have coagulated? can't we have coagulated? can't you have coagulated? can't they have coagulated?
V-ing perfect
can't I have been coagulating? can't you have been coagulating? can't he have been coagulating? can't we have been coagulating? can't you have been coagulating? can't they have been coagulating?