I can pinpoint you can pinpoint he can pinpoint we can pinpoint you can pinpoint they can pinpoint
V-ing form
I can be pinpointing you can be pinpointing he can be pinpointing we can be pinpointing you can be pinpointing they can be pinpointing
Perfect
I can have pinpointed you can have pinpointed he can have pinpointed we can have pinpointed you can have pinpointed they can have pinpointed
V-ing perfect
I can have been pinpointing you can have been pinpointing he can have been pinpointing we can have been pinpointing you can have been pinpointing they can have been pinpointing
Negation
Simple form
I can't pinpoint you can't pinpoint he can't pinpoint we can't pinpoint you can't pinpoint they can't pinpoint
V-ing form
I can't be pinpointing you can't be pinpointing he can't be pinpointing we can't be pinpointing you can't be pinpointing they can't be pinpointing
Perfect
I can't have pinpointed you can't have pinpointed he can't have pinpointed we can't have pinpointed you can't have pinpointed they can't have pinpointed
V-ing perfect
I can't have been pinpointing you can't have been pinpointing he can't have been pinpointing we can't have been pinpointing you can't have been pinpointing they can't have been pinpointing
Interrogative form
Simple form
can I pinpoint? can you pinpoint? can he pinpoint? can we pinpoint? can you pinpoint? can they pinpoint?
V-ing form
can I be pinpointing? can you be pinpointing? can he be pinpointing? can we be pinpointing? can you be pinpointing? can they be pinpointing?
Perfect
can I have pinpointed? can you have pinpointed? can he have pinpointed? can we have pinpointed? can you have pinpointed? can they have pinpointed?
V-ing perfect
can I have been pinpointing? can you have been pinpointing? can he have been pinpointing? can we have been pinpointing? can you have been pinpointing? can they have been pinpointing?
Interro-negative form
Simple form
can't I pinpoint? can't you pinpoint? can't he pinpoint? can't we pinpoint? can't you pinpoint? can't they pinpoint?
V-ing form
can't I be pinpointing? can't you be pinpointing? can't he be pinpointing? can't we be pinpointing? can't you be pinpointing? can't they be pinpointing?
Perfect
can't I have pinpointed? can't you have pinpointed? can't he have pinpointed? can't we have pinpointed? can't you have pinpointed? can't they have pinpointed?
V-ing perfect
can't I have been pinpointing? can't you have been pinpointing? can't he have been pinpointing? can't we have been pinpointing? can't you have been pinpointing? can't they have been pinpointing?