～すぎる
Verb stems may be followed by the helping verb すぎる which means “too much,” or “to excess.” すぎる conjugates as a regular ru-verb. すぎる may follow い and な-adjective bases by simply dropping the い and な at the end of the adjectives and then adding すぎる.
たべすぎてはいけません。 You must not eat too much.
はやくいきすぎました。 I got up too early.
このほんはたかすぎます。 This book is too expensive.
あのひとはしんせつすぎます。 That person is too nice.