English verb conjugation
CAN PARK

Regular verb: park - parked - parked

Affirmation

Simple form	V-ing form
I can park you can park he can park we can park you can park they can park	I can be parking you can be parking he can be parking we can be parking you can be parking they can be parking
Perfect	V-ing perfect
I can have parked you can have parked he can have parked we can have parked you can have parked they can have parked	I can have been parking you can have been parking he can have been parking we can have been parking you can have been parking they can have been parking

Negation

Simple form	V-ing form
I can't park you can't park he can't park we can't park you can't park they can't park	I can't be parking you can't be parking he can't be parking we can't be parking you can't be parking they can't be parking
Perfect	V-ing perfect
I can't have parked you can't have parked he can't have parked we can't have parked you can't have parked they can't have parked	I can't have been parking you can't have been parking he can't have been parking we can't have been parking you can't have been parking they can't have been parking

Interrogative form

Simple form	V-ing form
can I park? can you park? can he park? can we park? can you park? can they park?	can I be parking? can you be parking? can he be parking? can we be parking? can you be parking? can they be parking?
Perfect	V-ing perfect
can I have parked? can you have parked? can he have parked? can we have parked? can you have parked? can they have parked?	can I have been parking? can you have been parking? can he have been parking? can we have been parking? can you have been parking? can they have been parking?

Interro-negative form

Simple form	V-ing form
can't I park? can't you park? can't he park? can't we park? can't you park? can't they park?	can't I be parking? can't you be parking? can't he be parking? can't we be parking? can't you be parking? can't they be parking?
Perfect	V-ing perfect
can't I have parked? can't you have parked? can't he have parked? can't we have parked? can't you have parked? can't they have parked?	can't I have been parking? can't you have been parking? can't he have been parking? can't we have been parking? can't you have been parking? can't they have been parking?