I must have looked deep in thought, or as deep in thought as an 11﹣year﹣old man can, when my grandm...

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put down looked up brought about gone through

after which I have looked which I have looked after
that I have looked after I have looked after

looked through looked for looked after looked out

had looked; may have stayed looked; must have stayed have looked; may be staying looked; must be staying

after which I have looked which I have looked after that I have looked after I have looked after

after which I have looked which I have looked after that I have looked after I have looked after

looked through looked for looked after looked out

must have　　　 ought to　　　　 ought to have　　　 can’t have

have looked for; find looked for; find find; look for have found; look for

must drop must have dropped must be dropping must have been dropped

have to must may will

looked up looked into looked at looked through

would look at looked at was looking at am looking at

looked at looked after looked for looked through

after which I have looked which I have looked after that I have looked after I have looked after

I must be sleep at that moment. I must have slept at that moment. I must have been asleep at that moment. I must have fallen asleep at that moment.

should must can need

the; the a; a the; a a; /

looked through looked up looked into looked out