I can convect you can convect he can convect we can convect you can convect they can convect
V-ing form
I can be convecting you can be convecting he can be convecting we can be convecting you can be convecting they can be convecting
Perfect
I can have convected you can have convected he can have convected we can have convected you can have convected they can have convected
V-ing perfect
I can have been convecting you can have been convecting he can have been convecting we can have been convecting you can have been convecting they can have been convecting
Negation
Simple form
I can't convect you can't convect he can't convect we can't convect you can't convect they can't convect
V-ing form
I can't be convecting you can't be convecting he can't be convecting we can't be convecting you can't be convecting they can't be convecting
Perfect
I can't have convected you can't have convected he can't have convected we can't have convected you can't have convected they can't have convected
V-ing perfect
I can't have been convecting you can't have been convecting he can't have been convecting we can't have been convecting you can't have been convecting they can't have been convecting
Interrogative form
Simple form
can I convect? can you convect? can he convect? can we convect? can you convect? can they convect?
V-ing form
can I be convecting? can you be convecting? can he be convecting? can we be convecting? can you be convecting? can they be convecting?
Perfect
can I have convected? can you have convected? can he have convected? can we have convected? can you have convected? can they have convected?
V-ing perfect
can I have been convecting? can you have been convecting? can he have been convecting? can we have been convecting? can you have been convecting? can they have been convecting?
Interro-negative form
Simple form
can't I convect? can't you convect? can't he convect? can't we convect? can't you convect? can't they convect?
V-ing form
can't I be convecting? can't you be convecting? can't he be convecting? can't we be convecting? can't you be convecting? can't they be convecting?
Perfect
can't I have convected? can't you have convected? can't he have convected? can't we have convected? can't you have convected? can't they have convected?
V-ing perfect
can't I have been convecting? can't you have been convecting? can't he have been convecting? can't we have been convecting? can't you have been convecting? can't they have been convecting?