I can interlock you can interlock he can interlock we can interlock you can interlock they can interlock
V-ing form
I can be interlocking you can be interlocking he can be interlocking we can be interlocking you can be interlocking they can be interlocking
Perfect
I can have interlocked you can have interlocked he can have interlocked we can have interlocked you can have interlocked they can have interlocked
V-ing perfect
I can have been interlocking you can have been interlocking he can have been interlocking we can have been interlocking you can have been interlocking they can have been interlocking
Negation
Simple form
I can't interlock you can't interlock he can't interlock we can't interlock you can't interlock they can't interlock
V-ing form
I can't be interlocking you can't be interlocking he can't be interlocking we can't be interlocking you can't be interlocking they can't be interlocking
Perfect
I can't have interlocked you can't have interlocked he can't have interlocked we can't have interlocked you can't have interlocked they can't have interlocked
V-ing perfect
I can't have been interlocking you can't have been interlocking he can't have been interlocking we can't have been interlocking you can't have been interlocking they can't have been interlocking
Interrogative form
Simple form
can I interlock? can you interlock? can he interlock? can we interlock? can you interlock? can they interlock?
V-ing form
can I be interlocking? can you be interlocking? can he be interlocking? can we be interlocking? can you be interlocking? can they be interlocking?
Perfect
can I have interlocked? can you have interlocked? can he have interlocked? can we have interlocked? can you have interlocked? can they have interlocked?
V-ing perfect
can I have been interlocking? can you have been interlocking? can he have been interlocking? can we have been interlocking? can you have been interlocking? can they have been interlocking?
Interro-negative form
Simple form
can't I interlock? can't you interlock? can't he interlock? can't we interlock? can't you interlock? can't they interlock?
V-ing form
can't I be interlocking? can't you be interlocking? can't he be interlocking? can't we be interlocking? can't you be interlocking? can't they be interlocking?
Perfect
can't I have interlocked? can't you have interlocked? can't he have interlocked? can't we have interlocked? can't you have interlocked? can't they have interlocked?
V-ing perfect
can't I have been interlocking? can't you have been interlocking? can't he have been interlocking? can't we have been interlocking? can't you have been interlocking? can't they have been interlocking?