I can trudge you can trudge she can trudge we can trudge you can trudge they can trudge
V-ing form
I can be trudging you can be trudging she can be trudging we can be trudging you can be trudging they can be trudging
Perfect
I can have trudged you can have trudged she can have trudged we can have trudged you can have trudged they can have trudged
V-ing perfect
I can have been trudging you can have been trudging she can have been trudging we can have been trudging you can have been trudging they can have been trudging
Negation
Simple form
I can't trudge you can't trudge she can't trudge we can't trudge you can't trudge they can't trudge
V-ing form
I can't be trudging you can't be trudging she can't be trudging we can't be trudging you can't be trudging they can't be trudging
Perfect
I can't have trudged you can't have trudged she can't have trudged we can't have trudged you can't have trudged they can't have trudged
V-ing perfect
I can't have been trudging you can't have been trudging she can't have been trudging we can't have been trudging you can't have been trudging they can't have been trudging
Interrogative form
Simple form
can I trudge? can you trudge? can she trudge? can we trudge? can you trudge? can they trudge?
V-ing form
can I be trudging? can you be trudging? can she be trudging? can we be trudging? can you be trudging? can they be trudging?
Perfect
can I have trudged? can you have trudged? can she have trudged? can we have trudged? can you have trudged? can they have trudged?
V-ing perfect
can I have been trudging? can you have been trudging? can she have been trudging? can we have been trudging? can you have been trudging? can they have been trudging?
Interro-negative form
Simple form
can't I trudge? can't you trudge? can't she trudge? can't we trudge? can't you trudge? can't they trudge?
V-ing form
can't I be trudging? can't you be trudging? can't she be trudging? can't we be trudging? can't you be trudging? can't they be trudging?
Perfect
can't I have trudged? can't you have trudged? can't she have trudged? can't we have trudged? can't you have trudged? can't they have trudged?
V-ing perfect
can't I have been trudging? can't you have been trudging? can't she have been trudging? can't we have been trudging? can't you have been trudging? can't they have been trudging?