I can fidget you can fidget he can fidget we can fidget you can fidget they can fidget
V-ing form
I can be fidgeting you can be fidgeting he can be fidgeting we can be fidgeting you can be fidgeting they can be fidgeting
Perfect
I can have fidgeted you can have fidgeted he can have fidgeted we can have fidgeted you can have fidgeted they can have fidgeted
V-ing perfect
I can have been fidgeting you can have been fidgeting he can have been fidgeting we can have been fidgeting you can have been fidgeting they can have been fidgeting
Negation
Simple form
I can't fidget you can't fidget he can't fidget we can't fidget you can't fidget they can't fidget
V-ing form
I can't be fidgeting you can't be fidgeting he can't be fidgeting we can't be fidgeting you can't be fidgeting they can't be fidgeting
Perfect
I can't have fidgeted you can't have fidgeted he can't have fidgeted we can't have fidgeted you can't have fidgeted they can't have fidgeted
V-ing perfect
I can't have been fidgeting you can't have been fidgeting he can't have been fidgeting we can't have been fidgeting you can't have been fidgeting they can't have been fidgeting
Interrogative form
Simple form
can I fidget? can you fidget? can he fidget? can we fidget? can you fidget? can they fidget?
V-ing form
can I be fidgeting? can you be fidgeting? can he be fidgeting? can we be fidgeting? can you be fidgeting? can they be fidgeting?
Perfect
can I have fidgeted? can you have fidgeted? can he have fidgeted? can we have fidgeted? can you have fidgeted? can they have fidgeted?
V-ing perfect
can I have been fidgeting? can you have been fidgeting? can he have been fidgeting? can we have been fidgeting? can you have been fidgeting? can they have been fidgeting?
Interro-negative form
Simple form
can't I fidget? can't you fidget? can't he fidget? can't we fidget? can't you fidget? can't they fidget?
V-ing form
can't I be fidgeting? can't you be fidgeting? can't he be fidgeting? can't we be fidgeting? can't you be fidgeting? can't they be fidgeting?
Perfect
can't I have fidgeted? can't you have fidgeted? can't he have fidgeted? can't we have fidgeted? can't you have fidgeted? can't they have fidgeted?
V-ing perfect
can't I have been fidgeting? can't you have been fidgeting? can't he have been fidgeting? can't we have been fidgeting? can't you have been fidgeting? can't they have been fidgeting?